Probably a good idea. The SCRs pretty poor brakes are my old man’s number 1 criticism whenever he has a go, to the extent that he now refuses to!

🤦♂️. Then again, he is used to double disc front brakes, quite often Brembo monoblocks…….

. It’s just something I’ve never got around to doing……I did it on the Harley I sold a couple of years ago though, and it does make an appreciable difference. I agree with you too - they do look pretty cool!
Goodridge do a kit. This is on the UK site, but you have Goodridge over the pond, right?:
Goodridge high performance braided stainless steel motorcycle brake hose kit for Yamaha SCR950 ABS 17-20 reduces spongey feel & offers greater braking efficiency.
www.goodridge.co.uk
Failing that, I presume they do mail order…..
There’s a number of others companies in the UK who will knock you up a kit, but if they don’t already offer one, you’ll need to send them measurements. I imagined kits will be unlikely, given the scarce nature of our bike, but clearly Goodridge offer one!!

I presume a kit for the Bolt (XV950) would fit, too?
A couple of other companies over here I can think of, off the top of my head…..
Hel:
Braided Brake Lines, Fittings and Calipers from HEL Performance
(Hel were the ones I went with, on the Harley….)
Venhill:
Motorcycle brake lines
Ben