New foamie build.....and our first big mistake....

Hi all,
My husband and I finally decided to pull the trigger and build our first foamie. We've been reading this forum and watching videos for a long time, built a small model with cuts and angles figured out and all we had left to do was start.
This was just one of our drawings, we changed this multiple times, even from this design. A lot of talking and head scratching and determining where we wanted things to go.

Our little model made with foam board, again, we talked this over for awhile. The door is now on the opposite side from this photo, going in the other direction though still in front of the wheels.

All of our cuts have been made and everything checked to ensure it will fit together tightly.

The OSB has been cut and glued together, 2x2's secured down.
And now for the big goof.....

I asphalted the bottom of the floor first. I didn't think!! I know the canvas edges have to be glued under here and now I don't really know what we're going to do since I doubt the TBII is going to adhere to the rubber asphalt. Genius alert.
Any ideas on how to proceed once we start canvasing the exterior? I know there are a couple other people that have done this and are in the same boat, but I haven't seen their build results yet. Hoping this isn't too difficult to fix.
Thanks everyone!
My husband and I finally decided to pull the trigger and build our first foamie. We've been reading this forum and watching videos for a long time, built a small model with cuts and angles figured out and all we had left to do was start.

This was just one of our drawings, we changed this multiple times, even from this design. A lot of talking and head scratching and determining where we wanted things to go.

Our little model made with foam board, again, we talked this over for awhile. The door is now on the opposite side from this photo, going in the other direction though still in front of the wheels.

All of our cuts have been made and everything checked to ensure it will fit together tightly.

The OSB has been cut and glued together, 2x2's secured down.
And now for the big goof.....

I asphalted the bottom of the floor first. I didn't think!! I know the canvas edges have to be glued under here and now I don't really know what we're going to do since I doubt the TBII is going to adhere to the rubber asphalt. Genius alert.

Any ideas on how to proceed once we start canvasing the exterior? I know there are a couple other people that have done this and are in the same boat, but I haven't seen their build results yet. Hoping this isn't too difficult to fix.
Thanks everyone!