Just a point but if you store the plywood cutouts for the panel kits outside under a partially transparent roof (fibreglass roofing sheets)with pieces neatly piled on top of one another then the light \\\"prints\\\" the shadows of any overlaps including tools etc onto the underneath exposed ply-that is the sheets are photo sensitive. Wether this will show later through the transparent varnishes etc one might use or wether the print will fade I don\\\'t know, but it is worth knowing.
Phil Ward