Don't let this freak you out or anything, Barry, but ? all of that sounds pretty close to right to me.
ProRes LT is a good choice for this material. I've used it many times with stuff that originated in a highly compressed format, and it does the job admirably. I would be uncomfortable using LT in a workflow that required a great many passes of re-encoding, but I wouldn't have any hesitation about using it the way you describe.
You shouldn't shoot 30p, though. That'll end up looking terrible in all of your delivery formats, and for no good reason. Just stick to 24p for this. It's the right frame rate.
As for resolution, go with whatever the camera's native resolution is. Since you're talking about Canon, I'm assuming that's gonna be 1920x1080. Stick with that ? it sounds big, but your laptop-based system will handle it just fine ? until you're ready to deliver. Then convert your 1080p24 master into whatever delivery formats you need to ship.