Many auto parts stores do the "loaner" tool thing. Did that for my TJ when I lifted it. Have not changed springs on the KJ yet - so can't help on the right one. But it is info that I'm sure I'll need in the near future.
So at least this is a bump for you.
Did you do a search ?
05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded - Sold 2015