If you are trying to limit homework while playing something relatively sound I’d try both 2.d5 , Falkbeer Counter Gambit or just decline the gambit with a mainline KGD. Try both and see what feels best. If you take the pawn it may be best but you have to prepare for the Knight’s gambit and the Bishop Gambit or he may do something crazy and dangerous like a Muzio Gambit. It’s all good. I’m just assuming you don’t want to study much.
I hate the King's Gambit. How do I play against it?

If you are trying to limit homework while playing something relatively sound I’d try both 2.d5 , Falkbeer Counter Gambit or just decline the gambit with a mainline KGD. Try both and see what feels best. If you take the pawn it may be best but you have to prepare for the Knight’s gambit and the Bishop Gambit or he may do something crazy and dangerous like a Muzio Gambit. It’s all good. I’m just assuming you don’t want to study much.
No, I'm fine studying lines to be honest. The games I lost against the KG were because I declined them.
Cunningham's can be very effective.
The only effectiveness I can see in your example is white being a piece up after 8.Bxd5.