Cyclone's old one?
I'd say keep it as it is. I don't know everything about it but what's been done seems to have been done well - I've seen it going well ;).
It offers something different, whereas there seems to be a fair number of standard older 20VTs about at the mo. If it was mine I'd advertise it in its current spec. If I didn't get the interest I was after I'd do my sums and work out if it was worth my while putting it back to standard and flogging the mods on the side.
What next?