Yes worrying about the frame finish is now the least of my worries!
Spoke to a friend who said its very unlikely to be bent, but more likely that the two halves have gone out of balance. Got some v blocks and 2 clocks so will get it out tonight and see what's going on, but saying that if I think it looks dodgy I will just replace it..
Need to get the bloody ring gear off first tried pulling it of with no luck, will try with a bit of heat in the minute.
Tom