I can chip in about 500 minas for a guild house, I suggest you PM Aeolwyn The Elf About reserving a plot in the city Arlas, a city he and others are building, to build a guild house, ask him about different plot sizes to reserve and if you cant afford it right away talk to him about a payment plan for the plot. I have reserved a plot for a shop for me and a friend and me and Aeolwyn The Elf have agreed to make a payment plan for that plot.