Heck, that's my size. Buy it, and if it doesn't work out, sell it to me...

I'm only kinda joking. 6'2" is unlikely to work with a 55cm frame, but if this is something you really want to try, then maybe give it a go and sell the frame if it does not work out.

Also, do you have a current bike on which you can measure your saddle to pedal, saddle to bars, etc -- the critical measurements? You can get an idea of the various lengths and heights of the components you would need.

I am, however, reminded of a used car that I wanted, but ultimately passed up when I realized the sunroof was aftermarket and not factory -- some people try to turn a bad deal into a good deal, and it's not always the best course.