I am indeed the same RT
The custom exhaust went on the one before the Bonewagon - HotRod. That one was sold to a guy in Germany - apparently V70Rs are very expensive over there, and LPG is highly desirable, so he paid top book money for it.
Had a message back from him a few days later saying it was the best LPG'd V70R he'd come across lol - he made it to the Dover ferry from Doncaster in just over 3 hours !!!
I loved the Bonewagon, in particular the interior after I'd fitted the birch trim. I'd love to have that interior in my S70! Just for people who hadn't seen it, here is a pic -
I've just checked ASKMID and it is insured and still on the road - but IIRC the buyer didn't like the birch and refitted the silver trim