What kind of curves do you want?
build your "skeleton", stretch your fabric over the skeleton and secure it onto your frame, resin the fabric (build up the thickness in steps)...
Depending on how you want the final look of the enclosure dictates what you do to finish off. Whether that be sanding (lots of it), high build primer, bondo, or whatever. Then you've got the covering of the enclosure...the paint, the gelcoat, vinyl or carpet...
The important question for me would be, WHAT do you want the enclosure to look like? Perhaps find a picture of an enclosure that has some elements you're thinking of and post it a picture.
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Who cares What I use?
Remember your five "P's"
Remember the KISS principle
NEVER forget about Mr. Murphy
-Be PATIENT!-
This is why the car sounds great!
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