Hey MF,
Thanks for that. I know when I was buying the mower, they had upper tier models there with an alloy dark metallic, hammered look deck with VICTA embossed on the front, wash port and plastic strips on the side, with I think a VSX160 on them, so assumed mine could possibly be retrofitted to one of these, but if what you say is correct, this could be a real PITA.
I have been pretty anal about keeping it clean of crap, though I wonder at whether I can get 40 plus years out of it like my parents Corvette, and also the fact a mulch system is ruled out does annoy me. I will see if I can get some pictures up of it later just in case anyone here doesn't know what the mower looks like, but any more info anyone can think of is definately appreciated.