What will jacking achieve apart from more cost?
I assume that the pipe needs to be removed as it is out of service and poses contamination issues if left in situ.
Digging a trench of that size and with consideration to the locality will cost and (as the op queries) will be problematic.
As a solution, pipe-jacking only requires a small trench at each end. You would then force a new pipe with a larger diameter around the existing pipe. You are then able to jack the contaminated pipe out, leaving the new, clean pipe in place. Grout everything up and backfill the excavations.
There are often situations where the solution may cost slightly more (I’m not saying this method will be more costly) but given the far safer working practices may be the better option.