Maybe one of these similar products would be of interest:-
Eacon Shower Tray Leg Kit | Low Profile Shower Tray Leg Kit | 1300mm High | Trays Over 1200mm
BH Leg Extension/leg curl/preacher accessory for BH Olympic Rack Bench G510
Eacon Shower Tray Leg Kit | Low Profile Shower Tray Leg Kit | 1300mm High | Trays Over 1200mm
BH Leg Extension/leg curl/preacher accessory for BH Olympic Rack Bench G510