Advice on potential gear swap

Guys, newbie here. Looking for some advice on a potential rear end change. Been running a 3.91-SG last few years (741 case) but end up driving car much more on the highway than originally planned. Considering going to a 2.94 (maybe 2.76) and have a lead on a NOS ring/pinion set. Realize this is quite a dramatic change and just wanna make sure I'm not going to be causing more problems than it's worth (having to change TC, shift linkage, etc) simply making this swap. This is a weekend cruiser only that will never see the track.

Would also consider going to an OD unit (Gear Vendor?) if that's gonna be an easier/safer change but haven't researched this route enough yet.

Thanks all in advance for your help!

276/283 adv, 222/230 at .050, .571/.581, 108 LSA
727 (non-lockup) with 4.2 ratio 2nd gear
9.5" Dynamic TC with 3000 stall
TF-2 shift kit
B&M tranny super cooler
275/60/15 BFG drag radial rear