B is your best option. Find a used one, they come around. Having one fab'd would be hard because titanium is expensive and bending it is tough. Like you said, the right bends are important in that area. I guess you could buy a ss catless x pipe and rob the section 1 but sounds like you're a purist..
If you want to explore fabricating one you could price out the titanium at ticon.com. You need 2.375" tubing. You can buy pie cuts and mandrels but it will cost you a lot for materials and labor for tig if you can't diy
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