I'm offering links on a PR4 travel site and on a PR3 Real Estate site as follow:

Travel site:

PR4 homepage: $40/year
PR3 inner page: $25/year
Combination possible:
PR3 + PR3 = $35/year
PR3 + PR3 + PR3 = $45/year
PR4 + PR3 = $55/year
PR4 + PR3 + PR3 = $65/year
PR4 + PR3 + PR3 + PR3 = $75/year

Real Estate site:

PR3 : $25/year

Thanks!

Cody