Hi Martin
Sorry for delay in replying.
My 275 needed her lining replaced a few years ago,mainly in the forecabin, it was originally foambacked and perished with time so avoid.
I removed and kept all the linings as they are great template to pattern the replacements ,avoid foam, i went with bob standard hull lining and lots of evostick adhesive, didnt bother too much about removing to old glue which was a bit nasty and sticky, my thought there was the new would stick to it anyway
any old foam left, i used a wire brush taped to a hoover as this can leave a mess too... not the nicest of jobs but now looks fab once finished.
Have a look online just put in boat hull lining.
hope this helps
Peter Lowry
Sophia #275