Dunstall? tank and seat identification

Hello, new to the forum and British bikes, and am trying to identify the tank and seat a recently purchased '74 commando (MK2) came with. I think it might be an aftermarket Dunstall replica? The seat/fender mounting is obviously not original...








And a couple of how it looked on the bike when I got it (sorry, I didn't have a lot of room to back up)...




I'm restoring the bike as a roadster (with better brakes, rear sets, maybe clipons...) so if anyone has a guess as to what these would be worth (on ebay or this form) that would also be appreciated.

Thanks!

I have a tank just like that, I was told it was a Gus Kuhn.

AND IF THAT DOSNT WORK ,




So you just need the front guard .

The tank looks like it already has several blisters in the gel coat from ethanol/gas. Could also be just poor prep work under the black paint.

"...pour tous les amateurs..."

ILLF8ED said:

The tank looks like it already has several blisters in the gel coat from ethanol/gas. Could also be just poor prep work under the black paint.

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Similar thoughts, although I'd expect the blistering to be lower down/around the seams if it was from Ethanol.
stripping off that paint would help to understand the root cause.

That does look like what it is. I don't remember any reference to Gus Kuhn in the paperwork I got with it, but will look again. I had planned to replace the tank and fender with the roadster version, but if it is original I might want to keep it. It doesn't seem original, the SS fender was cut pretty roughly (leaving just the peice that , and the Kuhn fender was attached with plumbers tape (the metal strips with holes in it). The side covers have been repainted AT LEAST once (over the old paint), I think the tank was too. I'll probably get a chance to look closer this weekend.
Thanks!

The tank and tail unit you posted are not original in any case although might be a desirable after market set up. A ‘74 850 Commando came with steel tank whichever body style was original to your machine. Even the ‘74 JPN had a steel tank under the fiberglass cover.

ILLF8ED said:

The tank and tail unit you posted are not original in any case although might be a desirable after market set up. A ‘74 850 Commando came with steel tank whichever body style was original to your machine. Even the ‘74 JPN had a steel tank under the fiberglass cover.

Click to expand...

Sorry, I meant original as in installed by Gus Kuhn, as opposed to purchased 2nd hand by a PO.