Scott, you are worried about the bedliner coated feet, yet think im over reacting about the uncoated inside of the ported MDF box?
yup. will it rot? yes. eventually everthing wood does. will it do it in 2 years? nope, unless he fills the box with water. my money says it'll outlast both he and the next owner. based on the pics it's a pretty bad-arse build that should hold up to years of pounding.