[LS short box]

Not a Chev but I've been plowing snow with my 98 Wrangler for over 15 years. The plow is a Western hydro turn 7'6". Wired joy stick in the cab. It's really made for a 1/2 ton pick up so it's a bit too heavy for the Wrangler. When the plow is up it bottoms out the to the bump stops. I extended the bump stops 2".
I also only plow my driveway so I don't drive around much with the plow up. I take it slow and depending the snow depth make smaller cuts. I would try it before you spend money on new springs.
Engine wise you can try it in 4 wheel high. 2 low should be just fine even with 6 cylinder. A bit of weight in the back will help with traction. I have 400 lbs in the back of my Wrangler.
I don't need low range. My Wrangler has a 2002 LS6/4L60E swap. Here's a pic.
Couple of tips plowing wise.
1. Early in the fall if you get plowable snow set the plow shoes up a bit so you will do a bit less "landscaping" to the lawn if the ground isn't frozen.
2. Push the early snow back farther than you think you will need. Once the snow banks sit for awhile they get really hard.
It's really nice moving snow with heater and the radio on.