86 Suburban Lift and gearing questions

[Burbnasty]

Hey
New to the forum, not to the 73-91s or to the 67-72 trucks and mostly burbs. I have been reading posts from the forum for along time, but just signed up. Among many things I have an 86 suburban, that I have had for several years, it is pretty solid especially for an 86 that has spent its entire life in Michigan. (i park him in the winter) My family and I use this for a weekend cruiser, trail rig, pull jetskis to the lake, camping ect. It needs some tlc, that I have not done for a while because I have had my eyes peeled for an 87-91 4x4 burb 2500 with the throttle body or, another 4x4 67-72, or a super clean 70-s 4x4 with the woodgrain interior that I like . I kind of always planned on selling this one to fund the purchase of one of the three listed above. I really have had no luck in finding something as solid as I would like in my price range so I guess its kind of time to commit to the 86 (which is fine, it a great rig that has treated me well)

The 86 is a half ton, it has stock suspension 3.42 gears and no posi.
It absolutely needs before summer:
-New tires
-If I'm doing new tires I would like to step up to a 35s or I would settle for 33s
- A new carb, it has run so well for so long that I have left all emissions in tact, but I can no longer tune and re tune the stupid Q-jet.
I have several other things on the list but for now this is on top.

My questions.

Can I go to a 4 inch lift and the 35s with the 3.42 gears?
I don't do lots of freeway driving but I am on the highway alot.

I have searched high and low, on what lift to buy. I have heard everything from "don't buy rough country", to "rough country has changed and it the best". The more I search the more overwhelmed I become.

Can anyone recommend a good 4 inch lift that isn't going to rattle me off the road?????

If the truck starts to ride like a tractor, my wife wont ride in it for too long, then the party's over!!!!!

I have two square body parts vehicles, an 89 blazer 4x4 and a 90 2500 two wheel peel burb. I could rob the throttle body off of one of those as apposed to buying a new $400 carb, but I read through some posts and it seems easier to just get the carb.
More looking for suggestions on the lift kit but if anyone has any input on the tbi swap, I have all parts and I'm all ears.

Thanks you guys