The 1/144 EE kit is brand new. The price is a bit of a shocker though - Hannants shows it north of £100! It is supposed to be a nice kit. There was a vac kit as well IIRC. Platz made a resin one in 1/200. And lastly, FSM had an article to convert a standard 747 into an SP.
It's a neat looking 747 variant. To bad the EE kit is so expensive.