Got the new tires installed today and now waiting on the motor kit from pistonbikes.com. 66cc black race angle head.
Went to the local bike shop today to get a few spoke nipple replacements. First, they couldn't believe the size I needed. Then once I told them what I was building, they were totally confused! Got three nipples for free though!
As she sits waiting for kit and expansion pipe:
Still need to source/make a lay back seat post. Emailed Pirates to ask about their inventory, no answer. May call tomorrow. Better option would be to just get some 1" pipe and fab one up I guess. Would look better that than flat stock they use anyways.