Yeah , a reamke of the concept of Cube movie would perhaps be more appropriated
and it seems to be what you want to make even with your own changes.

By seeing you talking money, have a donate link on your page and talking about investors , you seem to be very too much oriented money on your goal.

Like others say , even lot of us have never made a complete game from years ,
so wanting directly to make an mmorpg ,
i think real teams making mmorpg
will prefer to make some standard ones and won't risk in a concept
tha tperhaps not all people like , and it could make a failure.

So yes start small , hire one programmer do four cubes that works with some ennemies and some of your concepts , do a working very small demo , and
if a programmer/3d artist is interested after trying it , sure it will join you.

My only advice my friend

(i don't said others guys posting here won't posted very good advices also,
i don't want another flame war with my very good friends here
that i know appreciate me A LOT )