Hi Wilbur, mowing 2 acres with a 460 is doing it too tough.You would be better off getting a Victa 24, now they are one serious machine and even 50 year old ones are unbelievable, they just murder the grass. If you get a few years out of a $400 Chonda I wouldn't think that was too bad. Not knowing the total situation, what about something like a grey Fergie and a slasher , that will get over that area in a very short time and they hold their value well and you won't be wearing your Greenie out every few years. Now lets not go talking about the cost of running motorbikes and their engine longevity
And then if you wanted the genuine Honda you can go for one of these which we all know give very good service.
www.smallenginewarehouse.com.au/collections/honda-vertical