So, the elves are sailing down the river, when they note that a special mushroom has popped up in a mushroom grove not too far from the river. Putting their boat ashore at the only practical landing point nearby, they leave a guard with the boat and send a team with the princess to collect mushroom spores.
Here's the order of battle with SBH ratings and abilities:
Orman, Elf Hero Q 2+, C 3
Hero, Shooter (long)
Erialla, Elf Princess, Q 3+, C 2
2 Guard Archers, Q 2+, C 3
2 Guards, Q 2+, C 3
Goblins and friends
2 Orc warriors, Q 4+, C 3
4 Goblin warriors, Q 4+, C 2
2 Goblin archers, Q 4+, C 2
3 Wolves, Q 3+, C3
Animal, Long move
For deployment, the elf player will split his figures between the mushroom grove (A) and the boat (B), after which the goblins will roll to see where they enter. The stream is impassible except at a ford (just left of the nubmer 5 below). The goblins can capture the princess by defeating her in melee, after which she can be moved at slow speed by the goblin player as long as accompanied by a goblin. More goblins will arrive eventually, so they can also win by killing or driving off the boat guard and firing the boat.
We'll see whether that seems too easy or too hard after a run through.
The boat, by the way, is a Dave Graffam paper model.