I rarely sell nucs for delivery given problems experienced in the past with nucs being mistreated during transit. It is possible to arrange this, but I would be reluctant to do so except in very exceptional circumstances or for bulk purchase (5+). The actual cost would be dependent upon your postal address and in addition to the cost of the nuc/s.
Having said that, I have completely sold out of end of April/early May nucs. There are a few end of May/early June nucs left, however these are likely to be sold shortly. I do have a few nucs available for the end of June/early July. The nucs do not come with a health certificate. It is possible to arrange for this but at additional cost to yourself.