$1000 is really a pretty good price to do that work and make the removable piece. Talk to a malibu dealer and see if you can get the skins and put them on yourself, it will be close to $1000 I am guessing. The lady that did mine had to take off the old, trace it, cut it out, sew it then attach it. I see you are in MN, this lady is in michigan I could put you in touch with her if you would like, UPS shipping would not be that much especially if you just sent the skins back and forth, let me know.
mmelvin@tkschools.org