Using a complete FI system including the distributor from a C24NE seems like a good plan and easy to do, especially if you use the 22E intake manifold.
The "2,2 Omega" cam in the picture can't be from an Omega as they are all 16V DOCH engines, perhaps it is from a Rekord with a 22E engine ?
The C24NE cam is not a double pattern cam, look here for the specs: opel, senator, monza, omega
Besides, the numbers on the cam sides are not a reliable way to identify them, it's the stamped letter at the back that does it and it should be an U. On a 22E cam it's an M.
In this listing of engines: https://www.opel-infos.de/technik/motoren/motto.html there is only one C24NE engine and it's shared by both the Omega and Frontera, and it seems strange if they were different versions and still would have the same hp and torque with different cams.