Don't be discouraged. You can make it work just fine if you wire it like a three way design. Cross the tweeter only to the two center woofers. Give them no baffle step compensation. Then let the six outer woofers cover the lower ranges and fill in that baffle step loss. You can use a low order crossover from the outer woofers to the inner two.

Here is a good example of this implementation.

http://www.rawacoustics.com/item__RA8_Speakers_ARRAY,777.html

This worked out really well and sounded really good.

Good luck,
Danny