Good luck! It's mostly bourbon, and was sweet even with the increased lemon, you could safely reduce the amount of orange stuff and it would still be plenty sweet.
Grande Garrone is an orange liqueur made with cognac, I like it, or you could try making your own (not for this round, I mean in general) to get one you like. Could burn some of the peels to get a more complex flavor, or use tangelos, customize it.
