Thanks everyone for the advice. I ended up buying a Yuba Mundo Classic. I found a xtracycle DIY kit on craigslist for $300 and also the Weehoo Turbo Trailer for $225. But both were about two hours away and from what I've read the xtraxcycle kit flexes a lot. If you factor in how much those two cost it kind of made sense to buy the Mundo. Also, I don't think I want to carry any trailers behind me. Yuba had a 20% coupon plus free shipping so I feel like I got a pretty good deal. I like the fact that I can buy accessories for it as the years go buy and even make it electric with the BBSHD kit someday.