renewing Istrument rating

[macflea]

greeting guys ,


I would like to ask your opinion on the most cost effective way to renew a valid easa Cpl license with an expired single engine piston rating and an expired instrument rating.

my understanding is I have to do sep rating on a single engine and pass a skills test to Cpl standard for the sep rating . including full cross country .

then do a multiengine rating and then an multi engine instrument rating and full skills tests for both.

I assume hours to be decided by the flight school.

its almost the same as starting from scratch again OR

do the Instrument Rating and skills test and then multi engine skill test.

would I get any credits towards the cpl sep rating?
would the ir airways flying give any credits for the Cpl cross country nav.



I would be interested in hearing your ideas .

thanks