Dish 500

it has only two lnb's, however, i have a dish 1000.2 but having trouble getting the satellites to pick up. the only place that it has been setup is in front of my house and i think the path to the sky is blocked. i bought a 1000.4 lnb but it doesn't work with the 1000.2 reflector. so, i'm searching on craigslist now to find a 27 inch black reflector. And if it comes with a 1000.4 western arc that will be a bonus.Then, i will have two lnb's (ea/wa) that are compatible with the same reflector.