hmm... well if you can buy keyblanks for your lock, and you have either some needle-files or a dremmel...
pick the lock, and take it off.. then read my guide in the "locks" section to take it apart... this shouldn't take too long providing it is a single wafer.
take the 'plug' out of the lock housing and insert your keyblank... the wafers inside will move a bit... the idea is to make all the wafers flush with the plug... so however much the wafers stick out of the plug you cut off that part of the keyblank... if it sticks out about 0.5 centimetres then cut that depth downwards... just go slowly until they are all at the right height... when this is done insert it back into the lock housing and pull out as normal.
i don't know if you will be able to get hold of these keyblanks easily though... maybe you might be able to make your own keyblank out of a piece of hacksaw blade or brickstrap... if the wards aren't nasty it will be okay. If you do this make sure you sand it so it is smooth
see if you have the tools, and if you can get some keyblanks... I'd give it a go myself to be honest... if not call a locksmith
