New to board - need help (69 camaro)

[smittys69]

Hello to everyone and I want to thank you in advance for helping me build my 69. I have a 69 SS SB camaro that is currently stripped to bare metal and in the paint shop. I would like to get the pro-touring look without breaking my bank account. I need help mainly with the rear suspension and tire sizes. What is the largest wheel/tire combo that I can fit under the stock rear (currently drum brakes, multi leaf, 12 bolt posi). If I install the DSE mini tub, would I need to install their whole kit or could I get by with the tubs only? What mods would I need to do with the frame rail when I install the mini tub? Thanks for your help!