You might check some of the sizing charts available from the manufacturers. You might find an off the shelf suit will fit properly. All off the shelf suits are built to fit measurement ranges. Suits can also be altered, for example, shortening the arms or legs. Most retailers have a pretty easy going return/exchange policy. Another option, if you didn't want to go the full custom route, would be a Made-To-Measure option if you like one of the standard suits. G-Force offers this with their standard suits. Their GF505 has one of the highest TPP ratings in the industry (for a SFI-/5 suit). It is a little heavy and bulky though, but a great price. Their new GF545 has proven to be very popular so far. It comes with a lot of options and a TPP rating of 23.
Howard Bennett
Racer Wholesale