Brass tube or rod will work fine if they didn't provide it in the kit. think "K&S"
I can't remember ever seeing any finished builds. I got my refund after being jerked around for three months. I'm glad I did because now I have the Moebius J-2 and it's lightyears beyond SFM's offering. I also came so close to buying their half scale B-9 but after only seeing one in the wilds (on ebay) I never want through with the order.Thanks Bert Model Maker! I found it odd that everyone was excitedly talking about these 2 foot J-2s then the thread just died with no photos posted and no more mention of it. I'll check out the web site, thanks.