Casual I was kind of thinking the same thing. I already have a Dana 44 for the rear. I just get carried away sometimes and start seeing that for another couple of bucks I could go a little bigger lift or a little better upgrade. Not saying bigger is better. Then there is part of me that thinks well I have to drive my jeep up to rubicon, wheel and then drive all the way back down here. So being a little bigger may not be such a bad thing.
This is true if you have the mods to support being bigger. If you don't have the support, then your gonna brake something! You wanna drive there & back. Well what if you break while your there? Thats what you gotta be thinking!
You NEED to plate the unibody no matter what!!! If your gonna off road it you need to do it! The sooner the better. Your D44 is great to have, but you still have a D30 up front and if you gonna try out Rubicon, its nice to have a front locker. Always better to pull than push when climbing. So locker up front not in the rear! Or do both, but front would be priority!
If you got the cash to do the whole shabang. Then sure go for it. If you can't do brakes & everything else. Then I say hold off on the 35's. Possibly do your 6.5" La & 33's. Your only going to gain 1" inch with 35's over the 33's. The extra risk involved with them them...isn't worth it to me unless you've got the mods to handle 35's! Especially if its your daily. If you aren't prepared for 35's then don't do it lol. Do everything else first & make sure your ready for them.
If your set on 35's the only advice I can give you is be prepared! Plate your unibody, upgrade to rear disk brakes, & get a front locker & truss that D30 if you can. That locker will take you farther than the 35's will & the truss will help carry the load of the 35's!
Make sure to carry spare axle shafts when you go wheeling! It's bound to happen to everyone lol & with 35's I would be cautious on the D30. Just be prepared man thats all I can say!
With 4.88s in a D30 the ring & pinion is gonna be at risk of breaking, so Make sure you do something about the D30, that would be my only worry! Truss it & get stronger shafts for it!
And make sure you plate the damn unibody 
I can't stress that enough. Plate it before you wheel it too much. Its better late than never. & its cheap as hell to do!
Make sure you got brakes to stop you & axles to carry you. If you got that then have some fun:thumbup:
EDIT: also make sure you have recovery points front & rear. That way if you do get stuck or anything you can be pulled without an issue!