It turns out that I can remove the bolts on the undertray without a ramp, all I needed was a mirror so that I can see the nuts. After that, I took a heat gun and worked the dent out as best as I could. There's still some creases, but I am not gonna look a gift horse in the mouth. The paint did chip, so I am currently sanding and applying infiniti oem paint coats on it, before I sand again and finish. Ill post pics.

 

almost finished with sanding..... I was going to wax the area just as a temporary "coat", but does anyone know of a good touch up clear coat I can use? I have a clear coat pen but the area i am working on is like 2x2 inches, and it'll take forever with the pen. I was looking into maybe a brushed clear coat or a spray type.

 

I would take it to someone who knows how to paint. Sounds like you're going about it the wrong way. Brushing paint on a car should never be a plan.

If it were me I would have wetsanded the area and resprayed base and clear. But I've been spraying automotive paint for 10+ years.