Jeez, if SCM100 pros are still cheaper than SC50Ts, you could get the SCM50 pros and pay a carpenter to build an identical dimensioned cabinet with the same roundovers and a luxury veneer!
Why would you do that?
Sounds like a recipe to write off investment in a genuine ATC speaker system.
Personally I don't mind the look of the ATC Pro speakers, though the domestic tower versions have their advantages.
Better WAF for one, though ATC towers don't conform to the slim aesthetic that seems to be in vogue these days.
I have SCM100 towers and like not having to mess with stands (I use my towers with Townshend podiums).
The grill covers also keep the expensive drivers out of sight to any over curious children (and adults!).
Domestic versions have the squared off protruding baffle designed for use with the grill cover that incorporates the rounded frame. Many people use the domestic versions without the grill covers, and they are often demoed that way, but I prefer the sound in my system with grills fitted.
If you like to ogle the drivers then perhaps consider the Pro version which are provided without grills and have the rounded off frame around the front baffle.