Looking good. Gotta love those tensioner's. So what are you thinking for a crank? Going with a wide one piece, or a wide 3-piece, or bent cranks?
B-E.com never has the one piece's in stock, their 3 piece is cheaper than bikeberry, but it doesn't look like it has all the hardware you'll need...
B-E.com crank http://www.bicycle-engines.com/wide-...dal-p-309.html
Bikeberry(looks like it has bearing races, bearings etc) http://www.bikeberry.com/widecrank.html
Have you replaced the cable in your pull-start yet? They use cheap-ass cables in those, so plan on having a brake cable handy to replace it