BOLT IN REAR SUSPENSION ?

UPDATE There was three routes I could take on this. 1 buy new leaf springs & buy the offset hangers & hope they give me enough room. (need new spring anyways) 2 Buy new springs & the kit to move the springs in below the frame. That means a lot of cutting, welding & cutting a whole in the frame for the rear spring bushing. Ive done this before but had plenty of room to do it in. Its not hard but like I said I only have 7 ft ceilings. I think it would make things a pain in the you know what. 3rd option RMS rear suspension. Yea I know its the most expensive option. I was told I can barrow a welder. On the RMS you weld in the cross bar & your done. Plus it gives you up to a 3/4 inch clearance. When it comes to the moving the springs in option your looking at about $500 to $600 till all said & done. I look at it this way if I took my car in to a shop & said this is what I want done I cant imagine the labor cost. Ive talked to a friend who did the rear RMS suspension on his & he said its a piece of cake. Easy. Anyone hear have the RMS rear suspension ?