If you can find a nice used one, get a John Deere CS62 (Efco) and send it to one of the spice merchants on this site. A ported Efco 62 is a neat little saw, handles well and has darn good RPM... New, either 6100 Dollie or the "improved" 562. I've used mine for removals, limbing, smaller stumping (under 30") etc, mostly in Locust, Hedge, Oak(s), Hackberry, Mulberry and Ash. In all instances it does quite well. The ported 262 in the barn is a little slice of evil and a lot of fun to run for a few tanks, but for all day cutting, I'll take the behaviors and A/V of my 562.
OR, just get an 044/MS440, 365 special, or 372xp and be done with it, though both saws would be a bit of a mismatch given your 7910's availability.