Building lift for 6 inch lift ?

[chevymadness]

Alright i want to finally lift my truck 6 inches but im having issues with cash to do it but its really that the lift company rough country doesn't have lifts for 2wd's and thats the lift i wanted. So my buddy just told me i can build the lift and i think im going to do i have shocks so all i need is really coil springs and leaf springs and blocks really.How hard can this be? i could also save money im looking to spend 500 tops if i upmost have to including stabilizer bar total. What do you guys think my suspension is old where the front sags cause of coil springs but no big deal its also a 2wd that i will convert in the comming months to 4wd but not now since im starting to drive i want what i can get.What do you guys think can i do it