I ordered rubber coin flooring for mine and love it. I bought aluminum Diamond plate and had it sheared big enough for the rear slicks and front tires. I marked the floor where my duster sat and arrived at the drag strip early enough to get it all mounted after I pulled the car out. Epoxy paint holds up ok but ages quickly.
Yes .. like John said :I have a piece of diamond plate under the front and rear tires , when I ordered my trailer I also added the front upper cabinet it really comes in handy .