How would you assign point value to player enjoyment?
How to you award points for characters role playing, shooting the breeze, and plotting and planning?
Most systems award alot more points for monster kills than further exploring a dungeon that was just taken, and plotting a way to remodel and defend it.
Or playing a practical joke on another character?
Bonus Action Die - 25 Base XP (in play this would be multiplied by adventure's threat level, which is the average party level plus a modifier representing the difficulty of the adventure, -2, 0, +1, +2, and +4 are possible values) covers roleplaying, the practical joke, and other moments of cool and mirth at the table. The XP is nice, but the die itself is a significant reward too.
As for the dungeon, as an example:
Exploring the Dungeon:
a) Explore 25% of dungeon: 50 XP
b) Explore 50% of dungeon: 100 XP
c) Explore 75% of dungeon: 150 XP
d) Explore 100% of dungeon: 200 XP
You could also base objectives on amount oif treasure recovered, have an objective like "Sneak past goblin guards" worth the same as the guards themselves (so the PCs get X for killing the guards, or 2X for sneaking past them).
Turning the dungeon into a fortress for the PCs isn't directly worth XP in Fantasy Craft, primarily because holdings give other benefits. Nothing prevents you for setting milestones in the holding's development. As for planning, it's not really XP worthy since there's no risk, and they tend to reward themselves in the system.