When I got my Slovak, I looked long and hard at the HPR breeds for something similar to a 'GWP lite' and the Slovak seemed to fit the bill.
Mine was as headstrong and driven and hard hunting as any dog you'd meet ! The bitches in his litter were much more biddable and easy going...the point i'm trying to make is that there are no guarantees and the individual dog is more important than the breed.
My current WHV comes from excellent hunting stock and is a lovely biddable gentle dog.....chalk and cheese to my Slovak but not all Slovaks.
Hope you find what you're looking for...if you decide on a Cesky or a Slovak, definitely get in touch with Hunting Dogs Europe I'm sure he'd be able to find you a dog/bitch.
ps I have no connection to the above other than I got my WHV from him.
Regards, Rob.