For various reasons, Ive decided to buy the SWR Mini Mo. Obviously, I need a power amp. Im wondering if I can use the SWR SM-500 with the Mini Mo. I would love it if I had the option to bring just the SM-500 or add the Mo to the mix as opposed to having to buy the SM-500 and a separate power amp for the Mo. If it does work, any thoughts on that combination? Also, if you had a connection at a store, say, Sam Ash, and that connection would give you Sams absolute best deal, would you buy the amp new or try to find it used? Thanks.