Need Tri top sizing help!

I have looked all over the internet and have come to the conclusion that they just do dnot make tri tops for people between 48-50in chests! I suffer from broad shoulders and may be able to eventually get down to a 48 if I throw in alot of extra running. I already run about 50 miles per week on top of my bike and swim. Any suggestions on a company that makes larger tops or any other top I could use to swim, bike, and run in? Thanks.