While not a Harley specific bloke, my go to would be Darren at DNA in Penrith.

www.facebook.com/DNAcustomcycles/

He does more fabrication work then 'customisation' but he's got the skills and equipment (CNC, Plasma cutter) to fabricate it CLEANLY without ugly ass brackets etc

Zombie performance make the weld in EFI plates for the existing sporty/TC.

However I am unsure if the pump is the same pattern for the 18 softails. The other issue is just getting the pump into the tank is a major pain in the ass. The 18 pump may be physically larger and pose other issues.

I have done this conversion before (sporty tank onto a FXDB) for a customer, I used the sporty fuel pump and it worked fine for the TC utilizing the same loom.

Although it's all personal preference, I think what you have planned will look good on paper, but exposing that big ugly backbone on the 18 bike is not going to look much good.

I also have a severe hatred for springer seats and working rear suspension on the same bike, It's like that triumph bobber thing.

Here is an older carb night train with the better looking backbone, these softies work well with the Sporty tank and the seat is right on the oil tank giving a much sleeker look.

Good luck.

TC is twin cam.

Do a measurement of the widest 2 bolts on your 18 pump and then you will know if it can work with the sporty tank. The King sporty might be a bit wider on the side but I know on the 2.2Gal Peanut tanks the pump takes up the whole underside and takes some very precise TIG work to keep it neat and out of sight.

Also another consideration is the orientation of the pump, can the 18 pump be run upside down without cavitation/starvation?

Food for thought.

call my bloke he is in Dapto NSW not far from Sydney ..

Pro Torque Motorcycles - 0418231184 say Matt (LIMPN) sent ya