Shooting sound a lot more fun for sure but trapping seem a lot more effective perhaps doing both would be the best of both world... these are surly big specimen and hell of a abomination these are.
This looks excessive.
I don't have a hog issue but do need to level the ground after pulling an orchard etc.
I use a single 18 foot heavy I beam. Drilled a hole about 2 feet from each end and attached chains from each side.
I attach a 3pth draw bar on the tractor with draw bar hooks on either side.
Attach the chains to the hooks so it pulls evenly.
When you get it balanced you can adjust how deep it digs in by raising and lowering the 3pth. You might need to make a few length adjustments to the chains until you get it just right.
Easy to use and takes minimal space by the barn to store.
When you want to go to a different field or get through a narrow area just unhitch one chain and it pulls straight behind the tractor.