Skinning is the easiest way. Sometimes the hide won't come off as easy as a deer but if you get into a bind, you can use a sharp knife or box cutter and cut 2" or 3" "strips"...then pull the strips off with a pair of pliers.
A few people have picked up pigs here and butchered them before leaving. Some like to lay the pig on a bed of straw... light the straw on fire. When the straw has finished burning, they scrape the hair and the outer layer of skin from the pig, then open and "gut" the animal.
I've used a blow torch to remove the hair and outer layer of skin. Works ok too.
When I can't find help or want to scald a small one.. I heat a pot of water to 165F, lay cheesecloth over a section of the pig, ladle hot water onto the cloth and let it sit for a few minutes, then remove the cloth and scrape the hair.
Then move the cloth to another section and repeat until the whole pig is clean.
I use the front end loader on my little tractor to move the pig around. Really helps!!
The block pit is easy to use and works well. Good luck with what ever you do!