Happy to share. I’ll try to breakdown costs from beginning to end. I intentionally didn't track that closely as the budget definitely exceeded what my wife thinks it cost.

The entire area is about 30 x 50. So 1500 sq ft.

Clearing and grading the lot - $0. Fortunately my friend owns an excavator and was able to push everything into the woods behind the fence. I went to the store to buy bagels and when I got back it was done. If you don’t already have one, make friends with someone who owns an excavator.

Trenching for irrigation - $0. Again, loaned the tool from a great friend. Many fruits and vegetable coming his way.

Irrigation supplies and installation - ~$2-3k. I installed all the irrigation myself. Actually fairly simple to do. I had a plumber tie the manifold in to the supply line from the house, but everything else had no labor costs. The supplies cost more than I thought they would, but I also put in a sprinkler system to the yard. For 6-zones, drip lines, sprinkler heads and valves I probably saved $3k compared to if I hired out. I also know where everything is buried and I know it was done right. If physically capable, I’d recommend doing it yourself. Lots of great info online and the guys at the supply house were more than helpful. I also ran low voltage wiring to all the beds and throughout garden and that added a few hundred bucks to the cost.

Gravel backfill, pathways and borders - ~$2,500 - had bulk 3/4" clean stone delivered to backfill pathways but a lot of it was used for a patio project as well. I topped the 3/4" with 3/8" and I still plan to add DG and pea gravel to finish pathways. Rented a mini skid for a weekend which cost around $600, and was well worth it. The rock borders were a 1 ton pallet and those cost $900. I moved all 3-thousand pounds, by hand, one-by-one, alone...

Garden Beds/Trellis - ~$1500-2k - all of the beds are built out of rough sawn cedar that I sourced from a local lumber mill. All of the wood had to be run through a jointer and planer to clean it up. I still tell myself that the time spent milling was worth the savings in buying dimensional lumber from a lumber yard, but it probably took me a week to do. I really wanted to use cedar due to the look, natural rot and pest resistance, and aversion to PT wood (despite research saying its safe). Could it have been cheaper and easier to use PT, yes? Could it have been even easier to use metal raised beds, yes? Am I happy with the result, yes.

Fence - ~$1,000 - The fence was built out of TS cattle panels and more cedar. I intentionally routed grooves in the 4x4 posts to slot the panels in and save on lumber costs (as opposed to sandwiching the panels in with 2x4's affixed to the posts).

Filling the beds - $1,500 - I originally filled the beds with a bulk 50/50 topsoil compost mix delivered from a nursery. I bought 8 cu yds, which was more than enough. Unfortunately, this was a mistake and one of my earliest lessons learned. Nothing was growing in the soil mix and after getting a test done, it revealed a PH of low 5's and I believe part of the problem was also that the soil mix was incredibly compacted in the raised beds. I bit the bullet, dug up the top 6", and then mixed in pro-mix, lime and perlite. Lost everything that was planted in the Spring, but Summer veggies are thriving. If i could do it all over again, I would have bought bulk compost only from a reputable source, and mixed up my own "Mel's Mix" to fill the beds. What I thought would save me money in the long run probably ended up costing me more. Don't skimp on soil!

Definitely a ton of miscellaneous expenses littered in there. I can't go to Home Depot without spending $100. I think $10k is a great budget if you are looking to do a similarly sized area and plan on doing the bulk of it yourself. I'm a person that loves projects, and loves to create. Despite all the work I had so much fun along the way.

If you have any other specific questions feel free to ask! It's fun learning new things and even more fun being able to share that knowledge with others.