Get on the “Vintage Suzuki Owners Group” on FB. There are ~7800 members with what seems like every Suzuki 2T ever made. Gordy Roth (812-459-5657) is worth checking with, as well.
I used to be on the Sundial Forum (Suzuki 2-strokes) and many times saw Bill Buhn recommended: https://www.billbune.com/services.html
I'll second Gordy. He's a member of our local vintage bike group and does really nice work. Ed Toomey might also, but he'll probably advise you to sell it and buy a Yamaha