69 Dart - relocate rear leafs ?

i am slowly working on my 69 Dart 440 project. One thing I am seriously considering is moving the rear leafs springs in. I am looking at the USCT kit for about 220 plus ship. It bolts in for location , then weld it up. I was under the car, giving it a look over , and it looks like if you move the pass side spring to the frame rail it will be VERY close to the fuel tank . Has anyone had this issue ? Any tips on what to do and what not to do ?
Thank you

It is a domino effect. Once you start moving stuff around you have to keep moving stuff until it all fits again. Don't start the project unless you know what you're getting into. It took me two years of work to get this A body back up and running after moving everything around.

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