new barrel ??

Hi
Well it all started the other day when i couldnt get my 90 started the engine just kept cutting out :| but after recent discovery i found that the key can be moved at ignition stage so when electrics are on u can nudge key and they go off went over a bump yesterday and the engine cut out but the key had moved could this be the problem if so were can i get a new ignition barrel and key ??

Congratulations! You will now have an additional key to carry on your key ring unless you buy a complete set of matching door lock barrels also.

Im in a similar position, ive lost my door lock barrels during a rebuild last year, so now I need to find a new set of matching front & tail gate door lock barrels & ignition barrel. How lucky am I!!!!!