yes its been done a couple times.

Yes you can. No spacers needed I run 2g gst wheels 225/45 16 stock suspension no rubbing.

So they should bolt up with no spacers required?

Correct.

Awesome. Thanks for the info

If you can't find the information here I often find that a google search usually gets me what I'm looking for

"2g wheels on a 1g dsm" gave me an old thread on dsmtalk that was asking the same question you were.

All of the DSM years used the same specs for offset, bolt circle, and center bore. The factory wheels differed in diameter, width, spoke clearance, and styling but are otherwise interchangeable.

Same for many of the other Mitsubishi cars from the same era. The wheels from my 3000GT VR4 and Diamante fit on my Eclipse. Not so in the other direction since the 3000GT VR4 needs extra clearance at the spokes for the calipers.