Welcome to the forum. In addition to the responses you get here, I would direct you to two resources:
www.vexpressionsltd.com - these people sell sets of patches (not samples, but settings that you import into your module) that save the average user countless hours of trial-and-error programming. Some of their offerings mimic particular brands, some the sounds of specific kits of well-known drummers. I do not know if they have anything by Fleetwood Mac or ELO specifically.
www.vdrums.com - this is a Roland-centric forum whose members are very generous with their knowledge of all of the Roland drum products, and many other brands. If you have not already, you may want to consider posting your question there.