Well the Polaris isn't around yet, though that would be a perfect surprise ship for the Idris event. Now that said, the Ares, both in zap zap and brrrrrt form paired along with a small fleet of eclipses would be perfect for taking that idris down. I think a few moles with cheap high-powered mining drills making close ranged strafe runs against an idris would just make for some serious comedic value.
So Plan A would be a fleet of small ships. Ares and Eclipses, maybe some support fighters for cover. I'm thinking we get at least 2 of the zap zap and 2 of the brrrrt variants, then bombard the Idris with as many torps from the Eclipses as we can.
Plan B is far less tactical and more in-line with TEST. We fully crew as many Moles as we can and the left overs pilot prospectors. Everybody gets a cheap high-powered mining head and we go in and try to take the Idris down that way.
I vote for plan B personally! But either way, I'd ask my fellow TESTies to record so I can do a multi angle video of whatever happens here.