Anyone running serious weight up front..?

So within the next week or two I’ll be having a V plow installed on my ‘19 CM TRD OR. The plow weighs in at 750lbs. The dealer (also the installer) said that he’s sold and installed numerous set ups like this on Tundras, and assured me the truck can handle it well. He actually had 3 Tundras in the shop getting outfitted while I was there. All 3 trucks were brand new 19s and 20s and had no mods on the suspension done. I asked him about level kits because my goal is to level mine out, and I’d like to ditch the stock rubber and move up to a 285/70/18. He said that as long as the lift isn’t outrageous, it should work out (referring to the push plates and plow being lined up correctly.

My question. Do you guys think 6112s up front would handle the weight of the plow? Are they rated less than the TRD OR springs that I have on the truck now? I do plan on putting Timbrens in place of the factory bumpstops as I think it will help with any squat I might encounter when the plow is raised. If the 6112s are good to go, would 1.9 be enough to stick the 285 RGs under it without trimming? I don’t mind removing the front flap, I just don’t want to hack up a new truck.

I won’t be using this plow commercially, nor do I plan on riding around with it hanging off the front of my truck all winter. So, when it is off, I’d like to have a decently comfortable ride.

Thanks for the help!