Fixing dent/rust on rear quarter panel 95-03

[MASTERBrian]

I have an '03 Burb that decided to start rusting on the lower quarter panel, but it also has a parking lot dent and I had a tree jump out in front of my rear bumper and added to the issue. I'm curious how bad these are to repair. I'll try to upload a pic, but of course the bumper dented the area in front of bumper, the other is on the side. Due to the rust am, I likely going to need to buy a panel to cut and weld in or does it look like I should be ok, just pulling the dent and hoping the rust is just surface at this stage. My fear is rust forming on the back side if I weld in new panel. The suburban will be the pics with rust and maroon paint.

Then yesterday some guy tagged my wife's '95 Yukon 4x4 in the same spot so I need to get that one fixed as well, but at least it's minus the rust. The Yukon will be the picks with Red & Silver Paint.

Guess I don't have the Burb, so I'll get that pic up shortly, but here's the 95 Yukon.

My main questions aren't necessarily concerning paint work, but rather getting the dents pulled out as well as what fillers are going to be the best for this area, since I'm sure a little will be needed. It's been about 20yrs since I've done much body work, so I'm a bit unfamiliar with what's on the market now. I do have a mig welder, dotco, DA, etc.... I'm wondering if I need anything else for this.

Thanks for any guidance to get started.