Two part glue is really expensive, especially for large areas.
The wear patches on my Ocean were put down with cheap Wickes own brand single part contact adhesive. They have been on for several years now and have survived all that has been thrown at them without even the hint of a lifted corner.
I used the same stuff to put the wear patches down on the top of the tubes on the Smaller Nashers Aerotec 380, and they too are staying put despite the boat being let down, rolled up, re-inflated etc, quite a few times now.
On both occasions the surfaces were prepared really well, and the instructions on the tin followed to the letter.
I wouldn’t dream of using anything other than two part adhesive for anything structural, or anything that needs to retain air in the tube.
In my opinion, cheap single part glue is OK for wear patches.