A320/B737 Type Rating Revalidation Cost

[Aerospace_Line]

Hi and thanks for reading,

I am wondering what the cost of an A320/B737 TR Revalidation is (I mean to be done within 12 months from its achievement). I am also wondering if, once with such a TR, we can do a revalidation without maintaining the MEP rating.
I am asking this because I wonder what the ceapest way not to lose a type rating in the case we can't find a job within the period of its validity.

Another chance is to let it to become not current and to go for a renewal in the case of need. And what about this??

Finally, can an IR rating be revalidated during a type rating revalidation, as we can to for sep or mep?

Thanks, cheers