D I wouldn't use the word denting. Go look at a mini truck website and you will get my drift. basically i cut out the floor the length of the tubs ( front to back) from rail to rail, then i raised the floor 1 inch in this position.
This was only done so the centre would not hit the floor during its travel. ( so no steping of the rails was needed)

As for removing the bumpstops completely, now you have an uderstanding why they are there. so you just have to re design them so they still function.

Some where I have some old pics of under the car. I will try and locate them.

Later Steve