How much Raptor liner...?

[firemedicsafd]

Im looking to line the floor of my K5 from firewall to tailgate ( which will be converted to a truck tailgate when i find one). How much raptor liner should i get? The amazons has 4&8 L choices. IDK if i want to tint the floor to possibly match the exterior. How does color hold up to sunlight? Thank you!

 

[nvrenuf]

I’ve read here that 4 will do the job but that you might want extra for good thick coverage. I haven’t sprayed mine yet but I have 6 (4 kit + 2 kit) to do it. I found the 2 bottle kit on Amazon for about $60.