Yeah, stock for stock, JK and TJ link mounts are in the same spots (close enough not to matter). Track bar is completely different, shocks and sway bar a little different, JK spring perches are taller, further apart, and about 3-4" further back than TJ (3/4" aft of axle center instead of ~3" forward of center, so JK axle moves forward if you keep TJ frame buckets as-is). I did like you're talking about and cut 3/4" out of the artec truss, moved the springs inboard to where they needed to be for the TJ.
The radiator is the problem. If you take the stock pitman and just put a heim on top, you end up within about 1/2" of the bottom hose and tank.
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Modifying the pitman arm to capture the SRE is no big deal:
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