Col, just a side note - I'd hang on to any extension tubes that allow your EPs to reach focus in straight-through mode (i.e. without diagonal).
Reason I'm saying this is that the FS60 is sufficiently short to use straight-through much more often than with larger scopes. Any observing below 60° I now do sans diagonal when using the little 60. Plus it might make a nice straight-through finder for the ES 162mm apo that you might end up geting one day
