No save the cash
Save it for the IR if one of my students had asked to redo the lasped IMC when they were going to do an IR anyway then I'd think it an expensive waste of time if you want to get back in the saddle save it for some extra sim time.
The main reason is whilst the IMC helps you get your scan back and all hat good stuff and YES any time in IR is better than not the IR is attempting to take you to the next level ie. procedural instr for a lving not to get you out of jail and as such though you do some of the same procedures to some extent you are not going to shoot asymetric ILS on your IMC catch up or fly airways if the purpose of your route is to get an airline job save the cash.
If you are going career instructor route or other then that would be differnet but if you are going airline then save it for sim prep when you have the licence and have an interview coming up. That is when you will really need it. The fact that you have already passed it X years ago puts you streets ahead of some on your course who will have done Ex 19a and that is it!!
VT with FI hat on
Oh and good luck