I'm guessing the fitment of a 160 isn't a huge undertaking?
Myself and a mate put a 160 in the front of a metro (from a write off!) a couple of months ago.
As simple as dropping the frames and swapping them over?
Not a 100% on the F as opposed to the TF but things you would need to check are:
The VVC control has extra wiring so you would need the VVC engine harness and matching ECU, plus you would need to check that the extra wires are in your chassis loom from the engine harness to ECU plug. Note that the ECU may be security matched to the BCU so that would need to be changed as a matched pair, unless you have access to the T4 to have it re-programmed.
Brian.