I just thought I’d share how I did it.
I initially had it in one enclosure but it was rear heavy and it was a very tight fit. I separated it then to two enclosures for better balance and fit. It folds flush so it still fits normal backpacks. The battery enclosure should fit a 10S2P battery but I’m currently using a 6S3P (I already had the battery before planning the build) so I could take it to flights. Wheels are 90mm but I had to make and use my own wedge riser for the front truck.
I just got some DKL non-abrasive griptape so that I’m not wearing linings of bags I do decide to put this in.