Hey guys, just a quick question. I am pricing 2' tall Gemini letters mounted to the front of a metal building with standard metal siding.  Not sure of the exact name, but its everywhere, 1 ft centers of the ribs and two small ribs in between the 1 inch main ribs.  So my question is as follows.  Do I use studs and spacers, held with lexel, do I need to do a stud/pad combo?  I'm pretty nervous to just depend on pad mounts as a 2 foot tall letter isn't exactly lightweight.  I would use panels and screw the letters to the panel, screw the panel to the wall, but these being so big, it would eat a lot of material.  What would you do in this scenario?  
Thanks
	
		
			
		
		
	
			
			Thanks