It is not as big of a deal as you think. All you have to do is swap the switch and then get a bit creative withe the motor settings for c and ku. I have done this before.

Listed below are two links on Ebay for Ecoda 22 KHz switches. These switches cost less than 5 dollars a piece shipped. I suggest getting one of them and use your current receiver for a while longer. EB


Code:
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&rt=nc&_nkw=ecoda+22KHz

Code:
http://www.ebay.com/itm/ECODA-2X1-SW22-22KHZ-22-KHZ-TONE-BEST-FTA-MULTI-SWITCH-/120319038958?pt=US_Satellite_Signal_Multiswitches&hash=item1c0392d5ee