I found your frame on Marketplace. If you sold it for your asking price, for not much more I'd offer you my Banshee Paradox V3. It's a large, however, so likely wouldn't fit you. To be honest, I absolutely love that bike, but wanted to go with sliding dropouts for single-speeding. I'd even include a SS tensioner. 😉 But seriously, I bet you could get a good deal on a new Paradox frame on Pinkbike these days. It's aluminum, but is surprisingly comfortable and I felt it handled Austin terrain super well. It easily fit 29x2.6 on 35i rims, but I also fit 27.5x2.8s on 45i rims so plenty of cush if you're so inclined.
Anyway, sorry the Marino didn't work out for you. I've been eyeing their full sus and thinking it'd be fun to build a super budget big travel enduro bike, but like you, I've already blown my bike budget for 2023. Oh, who am I kidding... My bike budget is like the national deficit. I'll just increase it when the time comes! LOL
Best,
Tommy