Our fifteen-year-old network of semi-autonomous portals is considering a facelift, beginning with a new default theme for portals that will be accessible via our Multisite framework. I have drawn up a not-to-scale map of core elements, which may be viewed here: http://img835.imageshack.us/img835/913/themelayout.png . I spent hours over the past couple of days pouring over amazing magazine-type themes, but none that are set up quite this way.
In light of this background, I would like to request quotes from any interested theme authors to modify your existing/similar theme so that it meets these specifications. Although we cannot afford to purchase a theme from scratch, if the right theme and modifications were made, note that we would (a) pay for the adjustments and (b) buy quite a few licenses for it (and would continue to buy them as new portals are added).
If desired, you may e-mail me directly: firstname.lastname@example.org. Thank you for your time/insight.