You buy it with Farmville coins.
Unfortunately you cannot gift a harvester in Farmville. Usually only items that can be bought by Farmville cash are the ones that can be send as a gift.
You can purchase it in the Market in the Vehicles category.
The mobile devices you can get on FarmVille are the Red Tractor, Pink Tractor, Seeder, Harvester, Hotrod Tractor, Hotrod seeder and a hotrod Harvester.
A tractor will plow, the harvester will...harvest. They both have different functions.
A harvester harvests your crop about 4 squares each time you click. Harvesters use a lot of fuel, so if you want to buy one, be ready to buy fuel.
I believe there is no such thing as hot keys in farmville. You really have to use themouse in doing almost about everything in the game.
When it says you have to be a certain level to get an item in the market, it means you have to be that level on Farmville. Otherwise it wouldn't be fair. You could be a really high level in one game and level one in farmville and you would still get to buy it. You have to work to buy things like that.
When did they make the first hot-rod
It shows up when you buy a vehicle such as a tractor or a harvester. It is your fuel bar, shows you how much fuel you have to run your vehicles with.
Hot Rod TV - 2006 SkySkrape Builds a Hot Rod was released on: USA: 18 June 2012
The hot air ballon on Farmville was a limited item. It came out only for the celebration of 1 million fans on facebook. You can no longer buy a hot air ballon, and these are not available for gifting.
The farmer has to prompt the vehicles to do the work.