£40.42 + £20 set up fee ... or £40.42 incl. set up fee ???
I dont know how they could charge a set up fee, its just three lines of script, but if its a business that would be a standard charge.
Why not just buy the Tshirt from wherever sells it, as obviously someone must do.
If you supply the Tshirt I'd do it for you ... but then maybe theres another TSPer with a professional E Machine who'd like to do it?