RA sell White Line m8 i got prosport guages from a shop on ebay, good price and quick postage i will send you the link once im home from the rigs, got a API pod from scobie world i think ???
try dent devils m8 iv used them in the past and you couldnt see where the dent was, as long as you have no cracked paint
http://www.dentdevils.co.uk/technicians.htm
you could just replace the damaged shock i think they are around £100, if your changing the lot you would be as well getting a set of BC coilovers as by the time you replace the lot with standard/uprated shocks and springs the cost would be the same as a set of BC's