As far as aligning when building. It's completely built in my jig unlike a normal metal frame where you would tack it in a jig and then do the complete weld or braze outside so there won't be stresses built into it. Much like building a bamboo frame. Just glue the tubes together and then wrap it with whatever you chose. I used carbon underneath and then hemp bast fiber as I ran out of carbon and honestly carbon was a pain to work with. Not to mention I've got like enough hemp to build probably 3-4 more frames. You can't align it afterwards so just make sure everything is where you want it before your epoxy sets.
Now how the elements are going to treat it I guess I'll find that out as I did say it was a prototype. I just stained it and then a couple coat of poly over everything. Hey I've only got like a $100 in everything and most of it was for the West Systems epoxy. Never said I was reinventing the wheel just trying something new out. If it fails then we'll have s'mores over it.