Help with suspension

Alright I have a couple questions on suspension. Sorry ahead of time if this has been covered in another post, I promise you I probably have already seen it and read it. Getting mixed answers. I have a 2015 DCSB OR. I’ll tell you what I’m wanting along with my questions. Going to be driving on a lot of mountain gravel roads. I want the truck to be smooth over washboard and small bumps. Will be between 10-30 mph most of the time. This truck is still my daily driver. I would like about an inch lift in the rear and about an inch to an inch and a half in the front. Do not want to go over an inch and a half. So after reading about different shocks, I had it in my head that I needed to get some good progressive shocks to smooth out those dirt road bumps. Get a deaver or icon leaf pack with a higher number but thinner leafs. I will have somewhere between 75 and 350 pounds in the truck at all times. Just depends on the day. I seen a post last night where someone said a digressive shock is actually better for smoothing out those gravel road bumps. Thoughts ??? Also what route would y’all go for the front and the rear ? For that amount of lift. Would fox or king coilovers in the front be worth the money to smooth out those bumps ? I’m not saying the truck is bad now, I just think it could be a lot better. Thanks for any advice and opinions