I would contact 123Gone about his recommendations. He's a Line-x Dealer in the West Fort Worth area. Perhaps he could give you some inside information.
I would, if I were you, make the trip to West Fort Worth for him to spray my truck. There's no replacement for experience. Plus, the first spray is always the most important.
Check out his web page and contact him by phone or e-mail. He's a very nice guy, and will always give you the straight answer.
Line-X Spray-on Truck Bedliners, Fort Worth, Texas, Arlington, Fort Worth, Hurst, Weatherford, Dallas, Saginaw, Burleson, Cleburne, Azle
(and no, I'm not paid for this) But I have contacted him many times for my questions about Line-x.