I am 39 and like to share my frozen embryos in return for ivf?

Does not work: Embryos are usually donated not traded for any monetary benefits.

Probably not: You could always donate your embryos to another couple anonymously or it can even be a known situation. But, honestly, most couples needing donor embryos will choose younger embryos and it would not be in their best interest to pay for half your ivf to get 39+ year old embryos.