Wheel Adapter/Spacer usage

I am looking at these http://billetwheeladapters.com/whee...wheel-spacers-wheel-adapter-wheel-spacer.html

I know a lot of people use spacers to clear bigger tires, but they always keep the same bolt pattern. What i want to do, is use the rims/tires I had on my 6 lug Dakota. But that bolt pattern in 6x4.5 and the Tacoma is 6x5.5. The tires sizes are exactly the same 265.70.16. I could just swap the tires but my Dakota ones are powder coated black and i really like them! Also, this would be cheaper than buying new rims/tires.

Any thoughts?

 

Bump

I'll only bump it once, dont worry. Im just really curious if this is a good/safe idea.