So I went to check if I had the latest firmware and I see they now have documented the process of setting of the configuration. So I downloaded the firmware, went through step by step and finished the settings. I was able to get it to compile and upload it to the 3D printer.

One thing I realized is that with all of the extra parts I have, I don't think it would be a huge cost to build and convert it to a Reprap i3 printer. I already have an extra set of smooth rods for the i2, which are longer than I need them to be, so it would just be a matter of cutting them down. Once I get the printer working as it is, I can print off a set of the 3D parts for the i3 and I think I would mostly need some m10 threaded rod ($25 pre-cut, possibly cheaper if I do it myself) and a frame ($20) for acrylic. I think I may need to get an aluminum tray as well, which may cost a bit more. It's also possible that I can get all of the components together as a bundle from Aliexpress for a decent price, though it may take weeks to ship.

The main advantages to switching to the i3 are that it's more stable and has a bigger print area. It looks like my plan to change out the extruder and convert to a bowden style works well with the i3.I think the next step will be coming up with a bill of materials and crossing off what I already have.