Thanks for the feedback @fallowdeer @Marty_d @IBob and @facthunter!
I'll check out the Zenith video and continue my research on the 912ULS vs. 912iS and I agree with all of your concerns with the complexity of the build and an EFIS, which I'll probably install either way. I've been spoiled with my Garmin G3x system and I don't think I can ever fly again without knowing each cylinder's CHT/EGT, fuel flow, etc.
I also appreciate the beta on the engine mount...not sure how much the ICP dealer wants for a ring mount but my guess its around $1200 (USD) or more.
I'm picking up the kit this weekend so once I confirm all the parts I have, I'll start to sort out the next steps.