I have has an ARB in the front diff on my 1997 F350 Ford for about 12 years now. My front pig is a Dana 60 full float. I've has absolutely no issue with it. I had a factory limited slip in the rear and replaced that with a Detroit Tru-Trak. The Tru-Trak is noisy when it locks and unlocks but locked, it's like s straight axle.
I think leaving your factory clutch pack limited slip in the back and the ARB in the front, you'll be quite happy. I do off road camping with mine (here in Michigan) so no sand but plenty of rocks, streams and mud.
I like the ARB because unlocked, it a full open differential so no parasitic drag, it's quiet and reliable especially with my manual hubs.
ARB cut it's teeth in extreme off roading, it's bullet proof.
Whatever you do, choose an experienced shop for the install. The pinion must be reset and clearance to the ring gear and it takes an experienced technician to so that.
I better add that the onboard compressor for my air bags also provides the actuation air for the ARB.
My 2 dents.