Hi!
The 1:1 wagers for the Meddlers and for the Wanderer's outcome work as your first assumption suggests--you earn back your wager plus a profit of equal value. If I wager 3 coins and I get away with my meddling, I earn 6 coins (getting back my 3 coins, and taking 3 more coins from the Pot)
As for the character sheet, I've just uploaded a print-friendly character sheet as per your request.