Here are some tips on spraying if you guys do decide to go this route.. It is a little cheaper and beleive me I am all about cheap and doing it yourself but again I wouldn't do it again because the long term and even light short term sucks.. But I would ROLL the first coat, so you really get it in there, in the crevices and such especially in high wear areas.. Then I would spray second and maybe third coats..
I also useed the $8 Rock Shutz gun from Harbor Frieght which works awesome.. I duct taped a Gadorade 1- quart jar to it which is killer and holds a lot.. Then you can see the different spray patterns before. I was told to keep it at I think 20-30 PSI which I did at first. You can see in the first pic it is gloppy and not a consistent full coverage spray. You also waste a lot of bedliner like this.. Then, I upped to about 40-50 psi and it shot great. Last photo you can see the comparison.. Hope it helps...

I also useed the $8 Rock Shutz gun from Harbor Frieght which works awesome.. I duct taped a Gadorade 1- quart jar to it which is killer and holds a lot.. Then you can see the different spray patterns before. I was told to keep it at I think 20-30 PSI which I did at first. You can see in the first pic it is gloppy and not a consistent full coverage spray. You also waste a lot of bedliner like this.. Then, I upped to about 40-50 psi and it shot great. Last photo you can see the comparison.. Hope it helps...
