Andy
Can you post any links to what's available in the States as I'm (a) not too sure what you mean but (b) more importantly having also got a second-hand MFT I'm interested in add-ons.
BTW - do you have any play at the end where the guide rail rests on (ie the end opposite to the hinge). I can move mine about 1/2 - 1mm.
Cheers
Roger