And the folks at Classic Modules Today seem to have B3, Palace of the Silver Princess, in the queue for a 5e conversion soon.
I would love to see conversion notes for all of the classic D&D and AD&D modules. 5e makes things easy to convert, but with these DMsGuild products, it is now even easier. The pdf also contains notes to place the module in The Forgotten Realms, so it does count as being FR content.
The product is short but nicely done, and I plan on supporting this Classic Modules series for as long as they put them out.