Marchand Electronics crossover modules and power supply with what 6 resister packs.
He sells the crossover module for $70 a piece and the resister packs for $6.
$70 for both boards and power supply with 6 free resister packs included. Just let me know what frequencies you want and I'll throw them in.
I've got a bunch of resister packs I will send as many as you want for $1 a piece after the first 6 free ones.