OMG that made my *** hurt just looking at those pics!
Tip for ya, once you get it all sanded and smooth. rinse it off with water then dry it completly.
Paint it all one dark color. preferd is black. use a scotch bright pad to smooth it, GENTLY smooth it, you are basicly cleaning off the furryness... then get it compltly wet again, prefered is to slowly run water across it as you closly look for flaws. as the water will show EVERYTHING, dents, scratchs, waves etc... use a water resistant marker and circle the spots you find..
If you take your time and do this, it will be glass smooth and your paint will go on ALOT better..
If you use some 2000 grit wet sand paper while running water over the part and sanding at same time, it will greatly speed this up. all it takes is a trickle of water to rinse off the debries as you sand.
Rule of thumb when painting. 90% of the finish is in the PREP work.