Triumph TR3- Rear Valance-Finishing Up

Since my last entry I have had 2 separate sessions in the garage, yesterday and the day before, about 3 hours total time. I have now finished off the rear valance filler skim coat and done the preliminary sanding to a "fit for purpose" state. I spent some time last night contemplating how much additional time I should spend "prepping" the surface? My conclusion was I could spend another couple of hours applying another skim coat to make the valance a little less "wavy" but in actual fact the remaining sheet metal was wavy to begin with and for me to spend time making it less so just doesn't make sense to me. I am still not yet happy with the quality of the lip appearance-it needs some straightening and a small amount of prep work prior to final painting. For now I will leave it and focus on applying the POR 15 to the truck floor and getting the final coat of primer on the bottom of the floor boards. The weather is predicted to get much colder on the weekend (currently -2 C-projected to be be -27C) which puts some garage time high on the list of priorities today...