Here's my best Advice
repco sell nolathane camber correction kits, one set will set u back $90 i got mine for $71 with a staff discount, u can get king springs of ebay for like $270 for a set of four and get monroe gt gas shocks for the back for about $120 u can fit all that urself if u got a few tools know what ur doing dont kill urself getting the springs out, then u'll need a wheel alignment which might cost u $40-50, id source all the parts from different places looking the cheapest, and not worrying about brands if thats what u want, just look around everywhere, get cheap stuff fit it urself and it will cost u like $400, them wankers at the shop love ripping ppl off with **** u dont need tell em to get ****ed. i went to a shop they were gunna charge me $1200 to lower it, when i can but kings, camber for like like 350 and do it myself, i got some tools a bit of knowhow. neway hope that helped a bit.