Looking to purchase gently used in 100% working condition JL AUDIO 1000/1 V2 amp to push my JL Audio HO112R-W7 and JL Audio 450/4 v2 amp to push my front JL Audio ZR650-CS components and rear JL Audio XR650-CXi working with my Pioneer AVIC-Z3. Any recommendations as well will be considered for my setup on my Cadillac CTS. Preferably together if the price is right so throw me offers.