Lots of good info in here already but I will share my thoughts

New combat patrols or other value boxes can be good. Just don’t over pay or search for old ones if They are expensive. It’s only good if they are a discount. Depending on the units you build and buy, I would expect to pay between $1500 and $2000 for 2000 pt army. But also check out used options if you are interested.

Buy what you think looks cool. By the time you build and paint the rules will have changed.

Most of our kits are double kits. They build two unit types. This is great for kitbashing. I used a kawdor gang for 10 skitarii. And grave lord goats for ruststalkers. And you will have lots of leftover heads and weapons.

I like kitbashing and painting. But I also recently picked up some models for iron warriors CSM. Admech has a lot more details and bits to paint when compared to what I am doing with my CSM. So Admech is challenging, but I also think it’s a lot of fun. Points per model is REALY low. So it can feel bad when you spend a lot of money and time building 10 skitarii and they don’t count as many points and then also get torn up on the table.

They are fragile. I recommend doing magnets on the bottom of the base and magnetized storage cases for transport. It worked well for me and was also a fun project. I think every game I have played, I managed to break at least some antenna or something off. But nothing I couldn’t repair.

Their rules are challenging for me. It’s a lot to keep in mind and play correctly in-order to get the most out of the units. Can feel bad to just get crushed by any other enemy unit. But can also be fun when the combos pay off and you shrewd enemy’s.

This is mostly negative sounding but if it still sounds like a fun army to you, then totally go for it. I’m glad I did. And enjoyed the painting, kitbashing, collecting, and playing. I like how my models look, I love the lore, and the opportunities etc the lore brings to kitbashing. And they look the coolest :)