The more I think about it, and looking @ college hockey as a whole, the best solution for ALL the D-II schools, not just the 6 schools playing in D-III in the NE-10/ECAC-E, is to form a D-I/II National Collegiate Championship for Men's Ice Hockey.
1) This mirrors the women and is pretty much defacto what is the current situation in D-I Men's.
2) The impeding re-alignment of D-I (see the BTHC effect) may have the schools group by resources, not playing level. The D-II's have nowhere near the money than the D-I's and the BCS schools have more money that anyone. If the D-II's can form up around existing D-II conferences, they may gain leverage, rather than sticking in a single sport conference, and play in the money championship.
3) Canadian schools. Canadian colleges are coming into the NCAA as D-II members. If Western Canada schools come in with any numbers, the 2 Alaska schools have a ready made, dollar saving conference.
4) D-III becomes pure - which will tickle the bowtie crowd in D-III land.
5) May actually encourage expansion. Cost containment conferences can and do exist at D-I and D-II, as well as conferences where the sky is the limit. If you're thinking of forming a hockey team, you may not have to break the bank.
6) Least disruption. 4 NE-10 schools have to goose the program, but not too much. Remember most colleges pick and choose which sports they want to dominate in and keep the rest at a "maintenance" level. These schools probably would never compete for a NE-10 title, but they would have an NCAA team. They're lots of schools who fill that model in lots of sports.
One drawback is that D-II men are currently limited to 15 scholarships, but the D-II women have the D-I limit of 18 (don't worry, the 2 true D-II schools play with 0 schollys). If there is a D-I/II NCC for men, I can see the scholarship limit being raised to 18.