Why don't you trade it in for an RPM-9? Plenty around 2nd hand around the £500 mark. Add an MC15 Mk2 and you have a very nice TT for relatively little outlay.

Also definitely look at the Roksan Radius 5 and Clearaudio Emotion. Both should be around £4-500 used and are equally good.

Rgds,

DT

PS, don't forget, if you buy an MC cart, you'll probably need to invest in a better phono stage