So I found a basic kit from Formbot3d for $899. It is 350^3, v6 hotend, core xy, BTT Manta M8P/CB1 and canbus wiring, . I would have to print some my own 3d parts. They offer a bunch of upgrades and since I have funds to spare.
Here is the packing list of the base unit.
So I was looking on West3D and found the kit I wanted, but they are out of stock. They also did not have it in 350x350. I’m guessing the only other option is to purchase everything individually rather than a kit.