Your back wall, or the wall the paneling was glued to will be destroyed or very marred.
Take the paneling off the best you can, paying attention not to dent, ding, marr, or gouge the wall board. you will anyway, but be careful.
When the stuff is down, use a putty knife to remove big globbs of glue, Your mission is to make the wall smooth as possible.
Now, what you hate to hear, you will need to re drywall the area. But, what will make the job easier is that you should use only 1/4 inch rock. Measure how many sheets you will need and then just nail them up and do your tape and bed work and then do your skim coating for your crows foot texturing and you are off.
Be sure and use the special primer for newly floated walls. Then apply your finish coat.
Sounds like hard work, but it really is not. the sheets are not heavy and it will go so fast.