95 F350 RS kits & SD Spring Questions

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So when i bout this truck these kits were installed by PO or the PO before that. I am in the process of designing and fabing up a 5" dual exhaust system for the truck. What i have sound is that the rear RS bracket has dropped the springs into the area where i planned on running the exits for my exhaust.

Ford Rear Shackle Flip Kit - Sky's Off-road Design

I also have this RSK upfront... 92-97 F-250/F-350 front shackle reversal - Sky's Off-road Design

I am looking for suggestions on what to do here... I have the original shackle brackets on hand. Would i be better of going with the original brackets out back and lift blocks so i can clear my exhaust?

Here's another factor... I just picked up some "W" code SD springs for the front(pass side sagging a bit). I read somewhere here that SD springs will give OBS trucks about 2" of lift, can anyone confirm this??

So with the SD springs and assuming that i get the additional 2" that's about 5" of total lift upfront... If i install the original brackets and add blocks to the rear how tall should the blocks be?? Should i also go with SD springs in the rear??

I want the truck to sit level but not be too tall that my 35's look silly. I also need to make sure the ball-n-chain can get up into her.

Any suggestions would be great!!!!