Current-day neuroimaging techniques seem to be inadequate for a full reconstruction, but having such scans in addition to a cryopreserved brain couldn't hurt.

I think that if you're getting cryo, you should go the full way, documenting as many details of your life as possible. The more information there is about you, the more likely it is that you can be accurately recovered. If you can get brain scans of yourself, all the better.