I think I could some of the answers asked here as a supporter of FC Twente from the Netherlands.
Fer is one of the key players in this years squad of FC Twente. He is strong, has very good heading skills and scored a good amout of goals. He is recognized as one of the biggest talents the Eredivisie has to offer. I think our ways of playing are very comparable and our level is about the same, so he will an immediate reforcement for your squad. However, he has been ruled out for a long time because of a knee injury, and about a week ago he recovered again from a knee injury after the training camp in Maspalomas. This explains the rumours of the failed medical tests.
All I can say that it would be a very good deal for us to sell him to Everton, because we already have agreements with two replacements for Fer (Filip Djuricic from SC Heerenveen and Claudemir from FC Kopenhagen). I think our chairman, Joop Munsterman, is just trying to get more money out of the deal. I don't know if any of you heard of the Luuk de Jong transfer to Gladbach (He finally went to Germany with a €15 million deal), but this seems a very similar transfer.
If you have any more questions, I'll try to answer them.