It would appear to be a bit late, but I just thought I'd point out that the red oracover is easy to find. While I don't know the specific color, it's also known as Ultracote. Oracover=Ultracote.

PS: I've never seen an ARF tank I'd install in a plane.

If it's any consolation, my first 4*60 built from kit went in inverted 15 feet after take-off because the idiot flying it (me) had the ailerons reversed. I'm now building a new fuse. Repairs didn't seem feasible. The rest of the plane was unscathed (lucky me) except for a very small ding on the wingtip. I will probably also build the wing from the new kit with one rib removed and less dihedral. Add some extra rudder and elevator? Maybe...

I didn't like the color scheme on the fuse anyway...