I would keep to the bog standard recipe but then have fun with adding the extras.
I used to replace some of the golden syrup with condensed milk....wicked. When the kids were little I added smarties sometimes
A few times I've topped with sliced apple before cooking. Make fj, spread some jam over, then sliced apple, spread more jam to make a glaze.
These days I tend to add sult, coconut, and dates. seeds have to have a place in there.
Wherever your imagination takes you
So I would say do the recipe and just chuck in everything. cook as normal for chewy. A little hotter for crisp.
Enjoy.