there is a clear yellow headlight/tail light spray by a japanese company called vans that you can get from inlinefour.com (one of my favorite JDM parts supplier). kinda close to what your looking for
sounds cool but may be a little price for some or take up too much space for some of the builds . what a bout a simple 40mm fan or fans set up like a paint ball mask they are ez to make and compact
auto body is a hobby of mine you only want to use 80 to get it close to where the level you want,then switch to a higher grits. if you use 80 to much you will leave deep scratches in the finish that can be seen in the paint.when i sand i use like 4 to 5 different grits. 80 250 400 800 1000...