Ok, so far the wheel has been fixed (took it to mountain mania yesterday and collected it a few hours later hehe, legends fix things fast!!)

Need to examine the rear mech a bit, ooh crap the quick release bent too lol.
Nice friendly new mech hanger ordered from BETD

Also im fixering the drivetrain, new chain has come, with new cassette on it's way. However im in a muddle over what chain devise to get, as the AC one is nackered.

Either BETD, MRP or Blackspire. However MRP or blackspire would need to be bodged lol.

And a pretty new Romic shock MMMMMMoney baaaaaaaags. HA IM RICH WITH TIPS SO :p

Ok, so the old chain is removed and binned

The mech hanger is nicely installed

The rear mech is slightly bent but nothing a good bending back couldn't fix.

The old cassette is welded to the hub so it seems and refuses to budge ( I may require the services of Buhsta's hefty weight to help shift hehe kidding)
New cassette is the yummiest thing you ever did see in a cool plastic tub lol.

Um new red crank bolts are on, yay.

I'll order the shock as soon as drivetrain is sorted.

I dunno if it would work but you could try putting the QR on as well as the cassette tool and if it goes on it will prevent the tool form slipping so you can apply max force. The easyest way to get a stuck cassette undone is clamp the tool in a vice and spin the wheel whilst holding the chain whip tool.

Money bags to say the least !!! What cassette u got bull ?

Don't worry bulla lol ill bring myself and some heafty weight to remove it lol Dave is right tho, put it in a large vice. Maybe 2moz afetr skl i shall come help quickly lol Bike sounds like its getting a very yummy make over shud be awesome