Looking to buy (used or new) a forced air diesel heater for my E 34-2 (1988). I took the original Ardic? out-it was failed. I have 2 newer air lines to the main and aft cabin. I heard the Webasto was great but is so pricey. And weather you need the custom kit form Sure Marine is recommended or the other kit (I do not need the hoses...) from West Marine or others are best. we are in N Puget Sound and cruise year round at times. ....Any recommendations?