I agree with Daygo.

One big problem, and I don't mean that as a pun, is that you are big enough to have problems using most norms for fitting.

I'm considerably overweight now, so I know the feeling. A big belly really limits the flexibility that one wants for an efficient position. Knees are awful close to the bar, think you could move back a little more.

IMHO, keep the bike for awhile to evaluate your fit and any changes that might be caused by weight loss and general adjustment to a new position.