No, I have never seen any of those except KEF in the UK and those two are the only speaker sets that fit in my budget and are 8ohm, I could get a Tannoy SFX5.1 for £180, but they will not work as they are 6 ohm.
I am considering going back to my original plan of buying separate speakers. Before I noticed those sets, I was going to buy Tannoy Mercury speakers for the fronts, centre and surrounds and make the subwoofer and amp I designed, but all the prices of the speakers suddenly shot up so I decided not to buy them.
I am thinking of for the moment buying the Tannoy Mercury F1 customs for the fronts and the FC Custom for the centre this year, and then buying the surrounds and making the woofer next year. That will come to about £130 for this year and another £130 -50 for next year. More expensive in the end but better quality so it may be worth it.