@Stabbey
The vendors aren't really that hard to find, here is a list I've been compiling of npcs. http://divinity.wikia.com/wiki/Characters_in_Divinity:_Original_Sin_2
The gold also isn't really that difficult to find, steal portraits from the fort and sell them.
Also during a quest on the island you can find a room with a bunch of piles of gold and it'll give you like 3k, I can't remember the quest name at this moment though.
The frogs probably aren't really meant to be fought too early, they are quite strong, perhaps with some grenades or arrows it'd be easier.
