You could checkout keeb.io, I have the Iris and it’s fairly ergonomic, and you can customize the switches you want.
Trying to tent it for even more ergonomic is a little weird, but I think it is doable.
There’s also (not from keeb.io) ergodox keyboards.
Link to the Iris: https://keeb.io/collections/iris-split-ergonomic-keyboard
Ergodox: https://ergodox-ez.com/
Putting everything together is basically just expensive legos.
As others have mentioned, definitely make sure you are using the motherboard stand-off screws, or that it comes with them pre-attached.
For RAM, it can really only go in one way but it’s a little terrifying when it audibly snaps into place.
If you get everything set up and it doesn’t turn on, first thing I always check is that the RAM is seated properly (motherboard may have recommended configuration depending on the number of RAM sticks).
Make sure you plug your monitor into your GPU, not your integrated graphics from the motherboard.
If you get stuck at any point or have questions, feel free to reach out :)
I’ve put together ~4 computers, 3 in small form factor cases and 1 in a normal sized case. Definitely recommend a modular PSU, and also using cable ties (the Velcro ones that are easy to remove) of some kind for cable management.
I also have an Iris! I haven’t tented mine and am trying to decide if I want to.
I’ve found it works fine for games, I usually just shove the right side of my keyboard out of the way for more mouse space, and just have a few extra mouse buttons to make up for not having the right side of the keyboard.
I’ve played through the entire main story, but only a few of the optional side missions (I am planning on playing through them, just haven’t had the time yet). I picked it up because I love their earlier game, Gunpoint.
It took me around 15 hours, and there’s at least probably 5 more hours for me to get all the optional objectives in the main story missions, plus the optional side missions.
I would highly recommend the game - the story and gameplay are both pretty entertaining. The little bits of character conversations you get at the start of each mission are pretty funny and well-written. It’s not very difficult (as there’s no % chance to hit like in x-com, actions are guaranteed when you execute them, and there’s unlimited rewinds within a “turn”) - more puzzle-like than tactical combat, but the added “Confidence” objectives are fun to try to get.