I think I'm just gonna purchase from my LGS so whichever model EPS they have available. The ones on display were all the solar ones and they are asking $395 for those.I haven't used this particular site (I've used Ibex Armament, Shop Black Rifle, and Modern Warriors for my Holosun optics over the years) - but this has a good breakdown of the different optics (do quote by e-mail for Black Friday MAP pricing)
Holosun | AA Armament
Green vs Red is a personal decision that I've posted out before. Having tried both, any future optics I get will be RED, as I did not perceive the green to be that much clearer to my eyes. I use prescription safety glasses at the range, but it's also clear enough to me un-aided (slight astigmatism) to use in emergencies. For roughly $100 less the red is perfectly usable to me. (I've compared 507k red and green, and now EPS Carry in green against EPS in red)
Supposedly under night vision the green dot is too bright even at lowest setting, no personal experience there.
For reticle options - for a pistol I think a dot is just fine, but on my shotgun I'm using the EPS Red MRS (Multi Reticle System) so it has circle+dot, also has solar backup if that's important to you. According to the site above there's about a $70 savings going with regular dot and no solar.
Given my druthers I'd prefer without the solar and I'm thinking of trying a green dot. I really like a green fiber optic front post so maybe I'd loke a green dot as well. If all they have is red that's fine. There is also the dot size to consider. I think the 6 moa dot would ve better for a speedster pistol like the Carry Comp.