The cost of labor and the hassle of getting a bike to a shop and then leaving it there will be more than the cost of the Ti drill bits and screw extractors and penetrating fluid that you need to DIY.
Plus, you will have these tools forever.
There's a few ways of doing it, give it a try first.
BTW, I'm near Richmond Hill and I've done it many times before (As has any vintage Suzuki owner!).