So.
I tested the bike today.
Wow.
This is better than I could have ever imagined. It just GOES. I've never tried a hub motor bike or any other e-bike for that matter, but this thing is quiet, powerful, and just.. amazing. I'm so happy this works.
Of course, I'm having a few issues that I need to work out. Firstly, of course, the hose clamps are insufficient for the full power. The foot tends to torque itself crooked to the point that the chain slacks and falls off. I will need to prevent this from occurring - some sort of friction material between the drive foot and the bosses on the frame should work. The T-bolt clamps should be able to hold everything together with sufficient force.
The chain tensioner is actually a lot quieter while riding than I would have thought. Although it's such a piece of crap I'd rather just replace it with a spring-loaded ball bearing one.
I have the CC controller cutoff at 31.8v, effectively limiting the current available. I logged a peak current of 81.2 amps, where voltage sagged to 30.8v. Once I get a rock solid mounting option I may lower the cutoff voltage to really see what this setup can do. But I'm really scared of blowing things up, so I may just nudge it down to 30v.
What's odd is the 10 awg coming out of the controller gets slightly warm after a few launches, while my 10 awg wire doesn't. I might replace their wire, but that's going to be extremely hard to solder, so I might just accept it. After all I'm not going to be doing full power launches constantly, I'm going to be commuting.
So yeah. I'd say today was a very successful day and I am very pleased with the results. I will post a video in the coming days to show it off!