Most mug presses are pretty basic and with sublimation inks the heat is the important factor. An EBay product might just suit your needs.
Don't forget the teflon sheethello,
if you would like to start doing personalised mug's
you will need to start,
1: sublimation paper.
2: ink jet printer (recommened epson)
3: sublimation inks you will need 4-6 depending on your printer.
4: siss system (Continuous Ink Supply System)
5: sublimation mugs
6: mug heat tape
mug heat press you can buy a 4in1 whitch you will get
mug press with heating element
1 small heating element
2 latte heating elements
you can get mug press's from 90-130pound these days
just do as much research before you buy.