Not sure on the time factor and do not want to know... lots.....

as for the layers the spare tire well enclosure has thick fleece and 2 layers of heavy mat, same with the pods that hold the speakers. It is thick 3/8 to 7/16 and super strong with no flex. Not sure on the weight of the fiberglass mat. The trim has the thick fleece and one layer of fiber glass cloth (lays on better). also has some mat in areas that needed a bit more strength and thickness. I think i have used 3 gallons of resin so far. Moving on to the custom trim for the touch screen. Will have the screen, volume controls with hot media keys and 2 usb ports from a dell keyboard(sk8135). heater controls as well. Also making a custom guage pillar to hold a 5 inch autometer tach and 2 other guages and tweeter pods. NEED MORE TIME! It should look very clean