FORKS.
My brother has just got a very clean T-500 Suzuki and from the pictures he sent me the bike has a 19 inch front wheel.
And a larger front brake twin leading shoe so maybe you could get the front forks and the wheel and brake Assembly.
work them on your 350 for better braking and the forks look like Bridgestone forks etc!
Just and idea.
Thanks.
Steve.