You could try Bob he owns (or owned) Ashokan turf and timber in New York and is a bit of a whizz when it comes to all things Jonsered.
I think Sugar Creek Supplies will "make to order" or at least you can request a specific set and I guess they do a run if there is enough interest?
The clutch cover decal will be easier found and more generic than the recoil cover model specific ones.
Paint- rattle can paint will look good for about 5 minutes or until you use the repainted saw, spill some fuel on it. Any paint shop worth its salt should be able to colour match a sample, but unless two pot epoxy paint or powder coating- it will not last.