Clips for Symphony CD Head Unit

Hi Folks, just treated SWMBO to a second hand Symphony CD unit (thanks Steve!) but the clips were a bit mangled due to the wrong tools being used to remove it. Unfortunately they are different from the ones on the original cassette unit (which I was going to swap over) and one of them actually broke while I was trying to straighten it, due to work hardening. So.........does anyone in the trade know if these clips are available as spares, in which case what are the part numbers? If not, can you think of any other way of keeping the unit in place which would be reversible at some point in future? Not blue tack, but any suggestions?

Failing this, has anyone got a dead head unit which I could have the clips off, for a few quid?

Thanks, SR

ps Copied from ICE forum for maximum exposure.