You didn't say what dishes you had, nor what your budget was.
For real commercial dishes, we have a forum member in the business,
Mike Kohl, who could probably help you with the big stuff.
Then for 2.4m (8') solid GeoSatPro or Fortec Star dishes, check out our Gold Sponsors at the top of the page.
That'd be SatelliteAV and Sadoun, respectively, for those particular dishes.
Moving down the cost scale, there are many 8' and 10' dishes to be found in the countryside.
More than a few 12' dishes, too. The 12' Paraclipse seems popular.
Sometimes they have horizon-to-horizon motors included.
Birdview solid 8½' dishes are popular with some of the members, who've been able to get them to do an excellent job on both bands.
They come with H-H motors, and need a few small mods to achieve their ultimate accuracy.
Here on the forum, we have a number of threads on BUDs we've found, refurbished, or modified.
Some guys combine parts from several damaged dishes to make one good BUD.
Often the cost of such a dish is quite low, so it pays to decide what you want, and go looking for it.
Taking what you find first/free, isn't always the best choice.
And as for Ku, there's nothing wrong with a 36" (0.9m), 1 meter, or for the totally crazed, a 1.2m dish.
Sadoun, SatelliteAV, and WSI all have representative dishes in the 1.2 and smaller sizes.
The best choice in motors for 'em, would probably be limited to
PowerTech DG380 or DG280 series.