Hi there, Tall, I thought I'd made it clear that this lovely rifle belongs to the guy shooting it, who is definitely NOT me!!! It is actually a replica made by Peter Dyson, who no longer makes them, if his website, now run by his son, is anything to go by.
They were quite costy, at around £4500 or £5000 last time I looked, and took up to three years to manifest themselves. This one is almost eight years old now, and gets very little use.
I've recently seen a similar genuine article here in UK for around the £8000 mark...
However, if you really MUST have one, take a look at the rifle used by Rob over on britishmuzzleloaders on Youtube. It is, in fact, a well-fettled Indian version, sold here in UK at around £700 for a rifled version, and a couple of hundred less for a smoothie - as used bey re-enactors of the 95th Regiment of Rifles [Sharpe's Own].