I noticed that in recent days you posted that you're just now looking for a location for your business, yet you're already focused on equipment for that location? You may want to hold off on that stage until you have a site and have some expectation of business volume; this is probably not hte place that you should be focusing your time right now.
Ultimately, the selection of equipment has a minimal impact on the overall success of a business; this is an issue that I address in the opening page of our free coffee business guide, the 12 Fundamentals of Coffee Business Success.
Additionally, it's pretty difficult for anyone to make a valid suggestion without further information. Where in the country are you located and is there a selection of technicians nearby? Are there reasons that you are focusing on economy models versus better performing systems? Why 2 2-groups?
You might want to put these issues on the back burner until you are a little further along; much can change while you search for a site.