There is a guy on 401 south about 3-4 miles north of Lillington that always has several beside the road on the right hand side for sale. Sorry, do not have any prices.
If he had to open the cooker more than 4 times when cooking, he was having a bad day.
Also not sure your experience level with them but if you think you want to use it as grill and getting a propane one get one with the additonal burner. Pig cookers lose alot of heat when you open the lid fast so they do not make as good of grills unless you have the extra burners to help combat that if you are trying to use it as a grill occasionally. Other issue is many depending how its built struggle with is to keep temps low enough without going out if trying to do low and slow.
And past due accolades from Jeppo.We even won accolades from @BatteryOaksBilly