i have 2 satalite dishes pointing to different satalites both have duel lnbf's 2 on each dish (4 lnbf's total) and i have 4 pansat 2700a recivers and digital cable want to hook all 4 lnb's plus cable and run it through 1 cable per room what kind of DiSEqC Switch and diplexers do i need to use and if possible where to buy them can any one help me with this problem