Pigs On Our Farm

I live on a 17 acre farm, and we have just bought four pigs and my fiance and myself don't know what we got ourselves into. Big Mama is in heat and very excited showing a lot of energy so we are going to get a boar tomorrow to breed her. The boar we found is on craigslist for 75 dollars and is 2 hours away from our farm. We have 2 baby male piglets but they aren't ready to be bred and this weekend after getting the boar we are going to castrate the pigs.Remind you my fiance and myself don't know how to castrate a pig. He has watched videos on youtube and is having his friend from upstate come down to assist him. We will see what happens and I will update on how the castration goes.