You don't need front camber bolts just for lowering springs. If anything, you'll need REAR camber links made by hotchkis.
May be you don't...But alignment shop did not do my alignment 'till i give them a front alignment kit...(I have Sportlines)
And rear Kamber links are not nessasary (at list is what i heard from the guy at the alighment shop) he did my alighment and it's not far from perfect w/o SPECIAL hotchkins kamber links. (And yes if you have an extra $250 to pay for it just buy it,it's not going to hurt you)