Hmm.
Off the shelf bolt in D60s front and rear with ARBs are $13500 +/-. $1600 less if using the factory e locker. I'm sure I could DIY the axles for a little cheaper.
Rubicon stock axles can be sold for $3500 or so.
$12k - $3500, so $8500 in costs for a pair of bolt in D60s on a Rubicon, less if I find some junk yard axles and DIY them a little.
Or, $12k cost for a non Rubicon jku in addition to the vehicle and no 4:1.
Seems like the Rubicon premium price would be worth it where some minor upgrades on the D44 axles would work for the short term until D60s are built.