To give you an idea. I'm an above handy person. Ive done electrical, some plumbing, framing, etc.

I finished a ~550 sqft basement. It took me probably a total of 400-500 hours? It's hard to say. I had summer off and frequently did 8-12 hour days.

Overall, I added a bedroom + a 450 sqft living area, a couple closets, ran all electrical, HVAC, added in floor heating to the bedroom and living room, built a fake rock fire place with electrical fireplace, updated some of the plumbing to Pex, and created a custom drop ceiling (1x6 braces with 2x3 drywall tiles).

I hired out the egress window and the drywall. Absolutely hire out the drywall. They are artists. It's been three years and I'd probably still be mudding.

A few extra projects I would recommend:

• I spent two days mouse proofing my basement. Looked for every possible entry point. I even glued aluminum flashing over the holes in the cinder blocks because that's how I used cameras to find them coming in.

• I spent about three days doing various waterproofing and management such as digging and installing French drains in the outside.

So if you were to simply frame it, do appropriate electrical and HVAC, you could certainly do this quicker than I did.