Hello to everyone.
I have an ocasion to buy ( very cheap ) VW Sharan year 2017 2.0 TDI manual gearbox which was " drowned" in water.
I took out all control modules out , cleaned them , put them all back and powered up the car and tried to do some diagnostics.
I got answer from - Can Gateway , Engine control module(EDC17C64) , Steering column ,ABS and Rear right passenger control module.
All other modules are dead (mostly coroded boards ), BCM ( BCMPQ35) , trailer , parking brake , doors, Instrument cluster , Climate module front and rear etc etc.
Now my question :
If i buy used Instrument cluster, BCM and all other dead modules will i be able to match them to car? I mean i dont know what modules have component protection ( if there is one) , what about immo? Coding will be no problem.
I have many tools, original and clone. My target is to try to start the car to see if the engine is ok .

Some info about the most important modules:

Engine ECU : 04L907309K HW: H20
Intrument Cluster : 7N0920870Q HW: H03 SW: 1104 TGS: 04S
BCM : 5K0937086T BCMPQ35 H122 S0184
Gateway : 7N0907530BJ HW:7N0907530AL