Marmaduke said:

Well there you go, my tratters chassis is that solid it can knock telegraph poles down.... Don't ask me how I know

Click to expand...

lol

[/IMG] This is my effort

Little follow up from me as I started the thread I thought I should share my results.

Bit of Sound Deadening to reduce the reverb from the Van sides

https://goo.gl/photos/T7XD7YG3WoBQ3CtQ6

Cut the 6mm ply for the sides, very easy to do then a bit of jigery pokery to notch the corners round the panels.

https://goo.gl/photos/Ri1UCehaBRatQPCYA

Wrapped with some Carpet using spray adhesive

https://goo.gl/photos/5Dn53FxXsY2wmWSRA

Panels offered into place, drilled and held in with the fasteners

https://goo.gl/photos/7JserzfpLMcs8RUw5

Similar operation on the roof, sound deadening....

https://goo.gl/photos/rvbrJMMt36KPwGN87

10mm Closed cell foam cut to size and fixed in place with spray contact adhesive

https://goo.gl/photos/3iWWgVzHWafryufQ6

And the front

https://goo.gl/photos/ZbZufgq26wzNSrX78

Cheap and easy enough to do, might do the tub when I get round to it, thats where the real difference would come from sound wise I imagine