Hi. As discussed in another thread I managed to mistakenly buy a mono silencer for Rex, my 86 twin shock project

. Helpful suggestions have included using the mono 2 into 1 headers but I'm loath as the headers I have are in great nick now I've polished them up. Plus I'm about to buy a house & am gonna be brassic. Aftermarket silencers are so expensive, as is a new Yamaha item, so I'm toying with this idea: see what you think. if i can get the mono silencer to fit the frame, what about fabricating a two into one adaptor & then cutting the headers down to allow for the extra length this will create? All I'm wondering is whether the headers are double skinned?

If so I couldn't really cut the ends off?
I know nothing about these bikes so advice very welcome.
Alternatively, does anyone have a silencer to sell? and if so does anyone want to buy a nice mono silencer, solid & good nick?
Cheers for now. Leah