Interesting scenario. I will share a few random thoughts, for what they are worth:
If you have a modern cellphone, you can use whatsapp or facetime to share live video with an anvil expert. I am sure that there are a few experts on here that would receive a call.
If the anvil was listed on craigslist, in a major city, and is still around, it may be overpriced, or junk, or maybe both.
If it is an expensive anvil , and your husband didn't specifically request a Hay Budden, then also consider getting a quality new anvil (with a warranty ... and maybe a return policy?).
An over 20$ vetting rule..cool idea!