[oil pan 4]

Well I am going to devise a way to raise and lower my suburban.
I will likely cut a coil or 2 off the front spring, insert a firestone #4100 air helper spring up front and/or put air shocks up front, then take 1 leaf off the leaf springs and install rear air bags.

That way I can level the suburban with a load (my 18'1''x99'' platform deck over all terrain 10k trailer), raise up my suburban maybe 2 or 3 inchs up front no load for snow.
The front end is going to have a bumper, intercooler and air dam setup that is going to end up sitting too low for much snow or any off road.

And no its not going to be cheap.
The front in spring air bags are going to cost up to $110.
I don't know and have not found front air shocks.
The rear air bags, anywhere up to $400.
And it is highly recommended to have an air compressor ($200 starting price for them), but I already have that installed.
You can go cheap and hand fill the air bags, but that appears to be the best way to ruin them by running them out of air, which is the number one reason they fail. Yes they still require at least some air pressure even when you don't need any lift or load leveling.