get ahold of Mr. Berman at the following site. he may have a used one in good condition. if he doesn't, he can probably get one.
i have ordered many parts from him for both of my problem child 300zx's. http://300zxpartsforyou.com/
All the Gods, all the Heavens, all the Hells, are within you. - Joseph Campbell -
Pooja II ~ 1984 300ZXT 50th AE ~ 2018 - 2019 Pooja ~ 1987 300ZX 2+2 NA2T ~ 2012 - 2018 Suzanna ~ 1983 280ZX Coupe ~ 2010 - 2019 Alana ~ 1976 280z Coupe NA2T ~ 2008 - 2019 Dianna ~ 1980 280ZX Slick Top ~ 2001 - 2007
Are you sure your evaporator is bad? There is a connection inside the box, my mechanic got to it without removing the dash etc. Replaced the rubber o ring and no more leak. I too thought I would need an evaporator so I do have one all setup in the enclosure.