Keyword characters vs Domain name?

ok i found a nice keyword for my niche, and i want to register the domain name exactly as the keyword being searched, since that's what you're suppose to do if you got a high search count and low competition.

But if my keyword was being search exactly like this:
"abc 0 1.2 three"

and in google if you search the compition inurl:"abc 0 1.2 three"
there isn't no results because domains can't have the period symbol.

So my question is how do I gain the most SEO out of this keyword by it being the domain? Should I put "abc01-2three.com" ? or "abc012three.com"

Obviously my content and title would be exactly as "abc 0 1.2 three". Im just trying see how should I register the domain or having "." & "-" doesn't matter in google as long as the title is exact & seo correct.

Thanks guys..

Kinda confusing, the one question I know that you asked was regarding a hyphen; it is generally considered that domains with hyphens don't rank as well for keywords unless the hyphen is apart of the keyword i think

I would say ABC012three.com As far as I have seen in my testing Google just ignores punctuation.

For instance if you search google for index.php the second site down look at URL notice that index.php is bold (well the . isn't) but basically my point is the period doesn't mean anything.