I've played around with side bars quite a bit. I always take it off for turkey season because the blind is always crowded anyway.
I don't think it really matters wich company you go with as long as your side mount is adjustable. That will let you move it around to find what holds just right for you.
I've seen guys buy just a standard v-block and try to run just off of one side, it may work for 1 out of 5 people but I prefer to have the adjustment to get my bow to sit just right.
I think your right on track with the doinker set up, its adjustable and you can move weights around and all that good stuff.
I'm a big fan of b- stinger and I believe they offer a kit now as well.
Goodluck with whatever you decide to go with
