That looks like a mean Barracuda! Looks sinister in Black. Very cool.
I think the RHD Mopars are getting a little more love these days. These RHD Barracuda's have a lot of nice parts on them and are built in the US. Will most likely have an 8 3/4" rear end with 3.23 gears and a sure-grip. Heavy duty rear brakes and suspension. Four Pot Kelsey Hayes calipers and discs up front. The front seats even had head-rests.
Being a '69 it almost definitely came with a 318 v8 and a 904 trannie. The RHD steering components can be sourced from Australia and shipping is surprisingly quick and cheap. I replaced every part on my Aussie Charger, including the brakes and suspension and it made a world of difference to my car.
Like the other RHD mopars from out of Australia they have aways been seen as the poor mans American wannabe's. But Aussie car prices have gone through the roof of late and you'll be hard pressed to see a 'cheap' Valiant Charger these days. Tony O (RIP) valued my Charger at £26k two years ago.

With the ever increasing prices for American LHD cars RHD cars are being dragged up as well. I think Blues kinda on the money with his valuation though. Id go as far to say £10k-£23k though. A '69 RHD Barracuda 'Vert sold last summer at auction for £15,000 and it looked horrific. (pic below) it also had a 20% buyers premium. So it really sold for £18,000, and the auction site was some obscure site Ive never heard of.
If this Black Barracuda is as clean as it looks and had a good restoration then I cant see why it would not make £25,000, its a rare piece of American Mopar history with under 650 produced in Fastback, Coupe and Convertible models.