Hi Ausfree,
You are postponing the inevitable, the entire lining will fall before long. It is an easy job to replace it yourself and should only take about 3 to 4 hrs max if you can get a mate to help you. Thats all it took me to do my Rangie. Not sure of the material used as the backing board in yours but, in mine it was a thin fibreglass type stuff with a foam backed velour fabric attached.
I got some exact matching velour from a local motor trimmer and 2 spray tins of; 3M General Trim Adhesive-clear 08088. it is the best stuff for this application, got it from a local rubber shop that sells foam rubber and matting etc. Word of advice, once you peel the old fabric from the backing board, there will be a fair bit of old glue and foam left attached to it, do not attempt to use a scraper to remove it as this will only smear it. Get yourself a big old scrubbing brush, you know the timber ones about 10" long x 3" wide. And DRY SCRUB it off, it comes off very easy and clean this way. Do a few practice runs to apply the velour without any glue just to get a feel of how it will sit. Roll the new lining onto a stick inside out. (I just used a garden rake handle) Read the instructions on the tin of 3M, Then commence gluing the velour, starting at the most complicated end first where all the recesses are and work your way to the other end. Only lay about a foot or so of adhesive at a time as you'll find that it dries fairly quickly.
Have some old news papers handy to place on the laid sections as you go, as this will prevent over-spray from getting onto the face of the section you have laid.
Have a go!! There is not much to lose. It's an easy job, the materials should only cost you about $200 to $250 and you'll get great satisfaction, I did.
