Dear Anon,

> By the latter did you mean the Akkhara Muni script of Ian James?

http://skyknowledge.com/akkharamuni.htm
http://www.omniglot.com/writing/akkharamuni.htm

> Or there is another font based specifically on Gandhari script?

Neither, we were talking about transcription roman fonts. I meant the font
called Gandhari, not this unnecessary monstrosity nor a Kharosthi font like
Rhino.

Stephen Hodge