Tank Overflow Cup
 

I finally got all the body work off and saw the tank overflow cup (part#: 17235-MS2-000) deteriorated and broke off. The part is not currently made anymore, not available from part retailers, can't find it on eBay and assuming that is isn't a part that would typically come up for sale.
Any ideas on alternate/other bike parts that would work?
3D printing is probably out due to heat but looking into it.
Also are there recommendation on the best web sight to order parts (mostly fasteners) that are available? There are a half dozen or so and just looking for people that have had good experiences (or bad).

https://cimg7.ibsrv.net/gimg/cbrforu...a52a8ef887.jpg
Tank Overflow Cup

https://cimg2.ibsrv.net/gimg/cbrforu...9f3595bca2.jpg
All Bodywork Off the 94 CBR1000F

Yeah, that part typically stays with tank when breakers disassemble for sale. You’ve got the part, measure it and fabricate replacement. Doesn’t have to be exact, no sealing needed. It just catches petrol and funnels it to hose to drain and not drip onto hot engine.

Replacements metric bolts you can get at any hardware store. Measure what you need and make list for quicker shopping.

Those plastic push-pins/rivets are like $7 apiece from dealer. Get whole assortment from here:

I figured I'd probably have to fabricate something. I can't find a 3D printer filament that is heat resistant and flexible so thinking that I could make a mold of the interior of the part and use heat resistant silicone to create the drain cup. Not concerned with how the exterior looks as long as can channel the fuel to the ground. Any other ideas?

Don't overthink this - just use a small funnel -