I need to order a lift kit as soon as i can for a 79 K5, from the looks of it ill be going with a BDS. Should I get the 8" kit? Are there any problems with that? as far as the drive shafts, would i just need to make them longer or get higher angle U joints? Would it be easyer to just get a 6"? thanks alot!!! also where online can I order a BDS?