This is my first post and i need help with a problem.

I just got a 99 Trooper with manual transmission 140kmiles. by the way, my first SUV since i had a 98 Trans Am be4 so i'm new to this.

The tires are shot except one new one (which will probably be my new spare so i can keep the spare cover cuz i like it).

I drive on the road a lot and highway half the time. However, i still want an MT for a couple reasons: 1)New Jersey winters! 2)look better 3)maybe i'll start offroading sometimes 4)i go camping a lot so maybe i can go to new more remote places.

See, i want the MT's for looks and added traction in snow and stuff but since i'm on the road a lot i dont want to be making a big sacrifice in safety or anything like that.

The tires i like are the Goodyear MT/R

first of all should i get an MT such as this one in my circumstances or is it a bad idea because it's not that safe on the road (highway).

If it's fine to use these as i will i'm stuck between 3 sizes: (i will use stock 16x7 wheels) and i dont want to suspension lift or body lift cuz budget and worse handling.
Goal: tallest widest tire that needs no mod to my stock suspension (or EASY free mod) that will not cause wear or safety issues or rubbing.
sizes: stocks are 245/70or75r16 (dont want this size)
options: goodyear wrangler MT/R
1) 255/70PR16 dia=30.3" weight=40lbs
2) 265/75PR16 dia=31.7" weight=55lbs
3) 285/75PR16 dia=33.1" weight=55lbs

sorry for writing so much but i want everyone to understand how i'm making this decision to get the best possible help.

one last thing to consider is i do want tallest and widest without modifying but i'm also considering weight as it affects the performance of the car in acceleration,braking, suspensionreaction time, etc. but i want the bigger diameter to make my gear ratios more mileage and highway favorable as well as improving ground clearance and better wear and less noise since knobs on tires aproach road surface at a better angle. i'm guessing only the first two will even possibly fit without mods but will the smaller one look too small?? because i like the weight savings of it.

if anyone has pics of MT tires on a 99 style trooper please post one because all i've seen so far is geolanters so far when i search for pics online.

Thanks for all the help and time.

Chris
NJ