I've bought a new Blue Flame exhaust from a nice chap on eBay. It arrived today and very nice it looks too. During communications with the seller he said he'd forgotten to send the hanging strap. I told him not to bother as I had one with my current end can which is going in the bin. When the parcel arrived it struck me that this new can is oval and my old one is round as is the hanging strap. The questions are: Can I form the old strap into the new shape? If not, do I have to buy a new one? If so, where from. TIA