If I may suggest, go try this out ASAP. When set up right these work pretty well. A bit long, so some height transitions are sketchy. But they cut well, pull a sulky, fit virtually all gates (36" mowers don't fit 36" gates easily.) and only one blade to sharpen.
I can't say this loud enough: T-bar controls make pistol grips look STUPID. Way easier on the operator. And this thing will be cutting seasons after these 30" timemasters are dead.
Bought one for a few hundred bucks years ago. Best little money maker I've ever had. And yes, I still have it.