You'll have to check with them but I'm fairly sure that Old sarum are selling a FR172 Reims Rocket, if you're thinking of buying rather than renting. My memory is a little dim, but I seem to recall that aircraft doing about 130-140kts if that isn't too slow for you. Anyway, I've flown one a few times and was very impressed. They're cheap to buy and cheap to maintain as the gear is fixed.