I need Ernie Koy Sr's college baseball uniform number when he played at the University of Texas. Anyone have a clue?

something like the pros wear or just something to keep mobility, but still is warm. something other than under armour, since it isn't warm enough i do have the under armour longsleeve cold gear mock and it isn't warm enough in the weather as of now

I mean, everything - hat, jersey, pants, belt, socks, etc. It would be for a Halloween costume. What I really want are the authentic game pants. I can get a jersey and hat pretty much at any online retailer, but pants I can't seem to find online.