Jeff, Yeah line-X is a spray bed liner. I have it in my truck, it dosen't get real hot, and it is non slip. I think it will work out great.
Tim and Nathan, This is my third boat living in this house. I have a Toyota Tundra and it seems to handle the extra load on the tongue just fine ( haven't had any problems yet) The wheels are mounted about 1/8" below the prop guard, they are 1000lb castors I think.