i wouldnt think so. with the beating i put my suspension through i dont have to have the shocks rebuilt for 50k miles. plus the first rebuild is free, atleast when i bought them. most bilsteins are not serviceable till you get to the higher end 7000+ range. so when they wear out (~75-100k miles) you have to replace them. The same thing with my Toytec BOSS coilovers, once they go out i have to just buy new coilovers. For just a mild offroad use, majority street/highway i see the icons lasting 75-100k without any service aside from just keeping the shafts clean and periodic inspection for leaks. another benefit of the icons or radflos or any other big coilover manufacturer is they have the threaded collar which allows for very precise adjustment from side to side with them still on the truck, compared to the bilstein 5100 or 6112 where if they need to be adjusted you have to remove them and disassemble them to move the perch up or down. plus they are only in set increments like .85, 1.75, and 2.5.
all the major manufacturers of coilover are all good, all have their pros and cons. if you find a killer deal on a set of 6112s dont be afraid to get them. but the best option, at least from what i can tell from what youre looking for would be a set of icon VS2.0 coilovers and shocks. Springs for the rear like i said earlier would hands down be the metaltech mediums, best spring me or my dad have run, you could also go with the icon overland ( very similar spring from what ive seen).
