ORIGINAL: dawnofzion
30 people is what I'm told to prepare for. They want to roast a "whole" pig. I asked them if quarters would be ok and they asked for a whole pig.
In that case a suckling pig of 60-70 lbs should be enough, and much easier to deal with than a 200 lb hog. A suckling pig is also much easier to ice down. If they want any free pork larger than that tell them to go shoot their own or visit ahog farm. If scalding the carcass with boiling water is too much for you try using a heat gun, the kind used for paint and tile removal, it gets more than hot enough to loosen the bristles, but take care to keep it moving so as not to scorch the flesh. If it has variable heat settings start at the low end.