Tractorhouse contains vast amount of used Kubota tractors for fairly good prices. Basically one can find a tractor suited for any personal need in these kind of online marketplaces.
it is possible to find a good quality tires on Ebay. Do not buy them used, you will get the best deal on used but poor quality.
Whether or not Kubota tractors are as good as John Deere tractors is a matter of personal preference. John Deere is a more popular company and generally the most popular companies create the best products; that's how they become popular and maintain popularity.
The Kubota BX25 and the Kubota BX23 both have good scores or reliability but the Kubota ZD28 has a low score. See a review at http://www.compacttractorreview.com/review/Kubota/BX25.aspx
Kubota is probably the best maker of tractors. However their machines aren't a lot better than anyone else's tractor and they are ungodly expensive. In fact the main makers of compact tractors are extremely close in their products and you should look at your specific needs rather than the name on the machine.
I have researched the Kubota company and found that unfortunately it is not an American company but it is a company based in Japan. The good news is that they do indeed have a presence in America and have headquarters in Torrance, California.
Kubota is a good place to look. John Deere is also a really good place to look. Both have really good choices of tractors. you may also want to research other dealers that may be in your area.
Yes, you can order small tractors from John Deere, Kubota, Cadet, Bobcat, and other websites. A good start would be to look at John Deere since they specialize in smaller tractors. Look at the offerings at http://www.deere.com/en_US/ProductCatalog/HO/category/HO_UT.html.
I own many Allis Chalmer tractors and the best i would say would be the 8050,7040,and the HD 16
Juding by the reviews that I have read I would say you could definately do worse. This tractor as is every tractor has its share of flaws one to be noted that it has a tendency to blow seals. A good site for the specs would be http://www.tractordata.com/farm-tractors/001/8/3/1831-kubota-l3240.html I hope this helps.
You can learn a great deal about compact tractors at tractorworld dot com. They have a good site full of information on the history and all its uses for your reference.
Tractors for sale can be found on TractorHouse, FarmMachinerySales, USFarmer and on eBay under tractors. Since tractors are a fairly big investment it's a good course of action to read customer reviews and even take contact with other farmers about the best model of tractor to buy.
The best deal on Ups shipping would be the economy shipping. To get the best deal, the closer the location to the person who plan on delivering it, the cheaper it is to get a good deal.