Hopefully this helps a bit. I kinda pieced together my lift but can provide some context, I am currently on EVO 2" front plush ride coils + 1" spacer and OME rear 2.25" med duty no load coil +1" spacer. On 37x1350 cooper's.
The 1" spacers were only added later due to some changes in weight (motor swap and loading gear for the rubicon and putting rear seats back in) when I originally put the 37s on I did not have the 1" spacers. I will say it worked without the spacers but I like the performance better with them in. But I wouldn't want it to be any higher than it is. Ran the rubicon on this set up and it did fantastic. First pic is with spacers second is without
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