I agree Tormek are a bit more expensive than all others. But I think you can do this when you are the best.
I used my RS without the side plate "Not recommended" & yes if you leave the plate off will make changing faster.
Have you ever put a straight edge on the grind From cutting edge to heal. I will be surprised if you have not got a bump
My choice to leave off the side plate as I see no risk where it is situated and over the years it has been fine. I'd have to be incredibly stupid to put my fingers in there and it's far less dangerous than the majority of tools and machinery I own. I'm not suggesting or encouraging others should do so of course.
I had no problems with my Tormek which i bought new though it did have the stainless shaft, earlier ones were prone to rusting but you can't make a direct comparison between that and and a Pro-edge as they are different types of machine both with pros and cons.
The Tormek is great for slow grind fine edges especially bench chisels but hopeless for regrinds unless you buy expensive diamond wheels. It's messy and not great for turning chisels (my experience, others will argue differently). The pro-edge is brilliant for turning tools especially HSS and yes I most certainly can get a flat bevel, no "bumps" with no problems but in any event a rounded or faceted bevel on a turning chisel is still perfectly useable. I don't use it for my bench chisels and plane irons for which I have a double grinder and a couple of diamond plates.
You say the Tormek "is the best". It seems you don't yet own one and there are other makes out there. The strong point of the Tormek is it's jigs and apart from that it's just a wheel on a small motor running in a trough of water, like it's competitors. The same argument can be levelled at the Pro-edge against the competition and personally I think the AXI model is better now.
I've owned both T7 and Pro-edge and made my assessment over several years based on my individual needs and preferences which is all any of us can do. Others (no names) will argue they are all expensive tat and all you need is a 100 year old oilstone and some sweat.
I didn't sell my Tormek because I didn't like it or desperately needed the money, I sold it because I very rarely found the need to use it.
Whatever you decide Nod hopefully it will do exactly what you want and you'll be happy with it.
ATB
Bob