69 Camaro tire & lowering selection

[Subman]

I have a 69 camaro convertible that I would like some advise with. I would like to use 18x8's on the front and 18x10's on the rear if I can. I'm currently running new tubular control arms upper and lower with QA1's on the front capable of lowering 2 inches. The rear has a standard 12 bolt posi with 3:42's. I want to buy the hotchkis lowering springs for the rear. Don't know if I should buy the 1.5,2.5, or the 3". Suggestions? I also like the BFG Rivals. I want to go wide as possible with no chance of rubbing. I also don't care for the super thin tires. Any suggestions? I would like to go as low as possible. If anyone has any pics that would be helpful as well. Please include lower how and how much and tire sizes with back spacing. Fairly new to the site and thanks to all in advance for any helpful info. Looking at Rushforth super spokes for my wheels.