Thanks Bob, You're probably dead right, on all counts- medication (this bike has cost me more in beer than I care to think)
The S/A Banjo I knew would not work, but thought maybe an 'adaptation', but never fear, I just got off the phone to Lauren at Draganfly, to swap the S/A one for the 67-161B, which Roger said was the stand-alone bottom pipe, like yours. I'll post a pic when it turns up.
It's been a handy diversion, as I've had a chance to find other bits I never knew existed(or hadn't looked).
Cheers, duTch
Sent a PM to Alan 900 Tripre too, in case not on here