Congratulations, that is the combination that I started with in Leica as well. I think there are plenty of Summitar fans in the forum, but Elmars in particular are very attractive to use because they are so compact, light, and original to the earlier models. I had a later coated one for a while, and it was a nice lens, but that example definitely was not as sharp as the Summitar.
Something that is not discussed often is that there is a variation in Summitars that could affect one aspect of performance: some have 6 blade apertures, and others have rounder apertures. My Summitar has a very sharp in focus rendition, but some pretty wild bokeh. BTW, does the Summitar follow a standard lens formula, i.e. Gauss, Planar, etc?