I found this link below, just to have an idea if the air intake could be relocated to the heater box area. See the picture. BTW starting such a project they probably had one or two thoughts about a good location regarding the air intake, concerning what is possible at all in a tight Plus8 engine bay. And of course only they know if it works.

http://www.gomog.com/phoenix/phoenix.html

'14 4/4 graphite grey