There are a lot of stories good and bad about doing the work yourself. If you have the time and enjoy getting out and working in the dirt go for it.
If you run into a problem most people are glad to help, You can always call me and I will be glad to tell you what I know.

Most of the time the bad news comes from the equipment.
Watch what you buy and know a mechanic. Renting might be the best way to go, but there is usally a time table with rented equipment.