Building Plan - 1st Stage

Plan A: Farm + Guard Post - 28.800 gp total -> 16.800 gp in treasury, 12.000 gp worth of favors or sponsorship
Already Built: Farm --> 6.300 gp in treasury, 2.000 gp worth favors or sponsorship

Left: Guard Post (20.500 gp in treasury --> 10.500 gp in treasury, 10.000 gp worth of favors or sponsorship)

2 people: Each 5.250 gp + 5.000 gp worth of favors or sponsorship
3 people: Each 3.500 gp + 3.000-4.000 gp worth of favors or sponsorship
4 people: Each 2.625 gp + 2.000-3.000 gp worth of favors or sponsorship
5 people: Each 2.100 gp + 2.000 gp worth of favors or sponsorship
6 people: Each 1.750 gp + 1.000-2.000 gp worth of favors or sponsorship

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Plan B: Farm + Processing Site + Guard Post - 40.200 gp --> 25.200 gp in treasury, 15.000 gp worth of favors or sponsorship
Already Built: Farm --> 6.300 gp, 2.000 gp worth of favors or sponsorship

Left: Processing Site and Guard Post (31.900 gp --> 18.900 gp in treasury, 13.000 gp worth of favors or sponsorship)

3 people: Each 6.300 gp + 4.000-5.000 gp worth of favors or sponsorship
4 people: Each 4.725 gp + 3.000-4.000 gp worth of favors or sponsorship
5 people: Each 3.780 gp + 2.000-3.000 gp worth of favors or sponsorship
6 people: Each 3.150 gp + 2.000-3.000 gp worth of favors or sponsorship

(Metagame: 1.000 gp worth of favors or sponsorship = 1 Favor)