...just did the headliner and trunk for the Mangusta, the headliner went in with 4 hands and a few iterations of trial fitting the 'cushion'...The lessons learned on the felt;
- prepare lots of material, esp plenty of sharp razors, a damn good pair of scissors, about 6 cans of adhesive, and more fabric than expected. I used most of 4 yards (x 54 inches wide, I think).
- cut the pieces to maybe even 20% bigger than you know it needs. So much easier to trim the overlap back instead of finding you have a 3/8" gap you cannot fill...
- start with the most difficult place, don't expect to start from one side and go to the next. For the Mangusta, of course the felt was put in before the front suspension or brake box, etc--But the practical place to start is at the front of the shock mounting bolt (and then stretch everything from there). Unless you suspend the front of the car and remove the bolt, the process I used was to inch a little cloth where the head of the bolt lies and make a small snip to create small hole...snug the hole over the bolt hole, start with some glue there...
- and then proceed at a snails pace of glue and waiting...and then, every move should focus progressively at every next 'tight' spot, and less on the space in between...meaning, the hardest part is avoiding the 'air gaps' at the sharp turns, and even with a rather conformable felt it is just better to nail the apex of the turns first and then gently padding down the flats...
- on the Mangusta, the shock mounting nut (towards the rear) should be removed, and then the bolt wound forward (avoiding working around the big displacement of the nut...). But also, the area behind the shock towers is far less visible.
- protect everything from the glue--not just the paint but also the 'outside' of the felt as you lay it. I used an old sheet and think twice before pulling the glue trigger...
After buying 3 different types of wool/felt, I went with the simple Aetna Felt style #2228 (black) that I had bought before I got occupied with considering a type of salt and pepper Haargarn...at ~1.7mm thick, its close to the original felt. A very thick felt is wrong for the Goose. And yes, Mike showed me the simple Home Depot fabric--he is right, it looks pretty damn close. I don't know if it has the same stretchability as felt, but the appearance doesn't look at all wrong...
