The demon door at Sunset house region wants to see a monarch. You are now the king, therefore a monarch. In this demon door there is 1mil gold. Use this gold + whatever gold you have to buy all the shops in Albion, and the expensive houses (millfield etc). First buy shops, and then buy more when you get income and can afford it. You will end up with an income of 140,000 gold every 5minute or so, and you can just play the game and you will get alot of money... or just stand around for it to come.
Either way you will get enough money to pay all the things you need to pay for.