this device will allow your Fortec box to posisiton your big dish.
Sadoun Powertech VBOX III
V3000 Positioner DiSEqC 1.2 Compatible
The issue now becomes, how do you adjust polarity and skew with this setup. Some of the guys more versed on
C band dish LNB's might care to comment.
You will only get whats available on DVB in C and Ku.
You could "slave" your analog box off of your Fortec unit and still get Analog stations.
You still have some options to get things working. Hang in there.