I’m in Oxfordshire and I googled steel supplies to get a few bits cut up to length, and the place I went to, was in the middle of nowhere, he charged me naff all for the steel, and said he’d knock a press up no bother, if I drew it up.
Most engineers in these shops are bored witless with long runs etc, so a bit of variety like this will go down well
It’s only a basic framework, use a bottle jack or something for the pressing bit
I used a winch roller off eBay, 2 for 25quid, rated for 3.5 tonne
Stick an old lathe bed under it
Etc etc etc
Some of the old mangles are perfect too, there’s leather shoe presses, but they fetch a bit more on eBay