Help with chemistry experiment design, simulation of acid rain formation.?

There is, actually. Take the flask or boiling tube you use to heat the sulfide, stopper it with a rubber bung fitted with a length of inert tubing, then have the tubing lead to a water bath where the SO2 should dissolve in the water. Have a collection vessel above it in any case, which would catch any escaping gas; no sense in having to run from the lab. Also, it may be a wise precaution to add a spray trap in the line from heating vessel to the water bath, in case you get a suck-back that could lead to disaster in a hot vessel.