The toilets that are designed to use the Unifit adapter all come with the 12" one. If you want to move the bowl, you throw that away and also buy the size unifit you need (in your case the 14"). By using this longer adapter, it pushes the whole thing back towards the wall an additional 2" (from the stock 12" one). There's no credit for the 12" unifit, so you end up with a piece to trash. Seems annoying, but that's the way they do it. The II versions (of those available) have better bowl wash than the 'original' versions (without a version number in the product name). But, I have two Totos with the Unifit (a Vespin and a Carlyle), and both work great. This flexibility costs as they are a bit more complex to manufacture, and they actually have some style. If the gap isn't that big, and you want to save some money, the Drake or Drake II are good performers, but you'll have at least that much gap, if not more. As Terry mentioned, the toilet must be made to use the Unifit, and only some Totos do - it is not a universal adapter that can be used with other brands or models except those designed for it.
Most people don't remodel their bathrooms very often, and this decision will stick with you for probably 15-20 years or more, so over that time, it makes some sense to bite the bullet and do something you'll like. The cost to move the flange would be much more than a toilet that would move it closer to the wall (a Toto with a Unifit). But, you'd still have close to 2" gap as if it was perfect, there's normally a 3/4" gap. Yours is 1.5" further out that even that non-standard standard 14", so it should be 2.25", if you measured correctly. You can fudge the attachment maybe a 1/4-inch or so, and probably get it to 2", but unlikely to get more.