I am planning to ride a bike through Central America. I am looking for recommendations on the bike. Preferably, I would like to keep it under $5,000 US but I am flexible on this point. My biggest reason for keeping the price the low is the potential for just ditching it somewhere if I get into a bind. I am well above average height so comfort is a factor. Being able to find spare parts weighs heavily on my mind. Equipment and do-it-yourself book recommendations are also appreciated. Actually, I'll take any advice I can get. I'm sure all this has been covered before so if anyone wants to simply direct me to the relevant thread that would be great.