I don't know whether or not RHO has a decent hand. If so, we could be in trouble. Depending on who my partner and opponents are, I would pass or double. I would like to bid 4NT for 3 suits.
I think standard for a double jump is preemptive, although after RHO passes, maybe a different meaning is called for. Either way, I think 2♠ is enough with 6=2=2=3 and 8 points. But I do have two aces...