Hello, I've been researching for a bit of time now and I've narrowed down my kit options. I'm a first time builder(never worked with a gas powered engine either, excited to learn!) and I've realized I want a kit rather than buying parts separately. The first bike is from ebay, http://www.ebay.com/itm/80cc-2-Cycl...es&hash=item2a1d4ed58d&vxp=mtr#ht_1055wt_1163 156bucks w/ shipping, sounds like a good deal second bike from ebay as well, http://www.ebay.com/itm/NEW-80cc-Bi...Parts_Accessories&hash=item4166b047dc&vxp=mtr 176 bucks w/ shipping, good seller lastly, a jet engine, the only one of the three thats branded http://www.pistonbikes.com/product-p/1bjet80.htm 227 w/ shipping. my question is whether its wiser to buy a kit from a 99% verified seller on ebay and save 71bucks, or to spend more on a jet from piston bikes?