Park Edwards
Veteran
Ooh I like that Mamiya, very retro. It looks like something from the great depression. Very appropriate for our time. One of these indie rail riser plates might do the trick for ya Ralph http://www.indifocus.com/products_indirailspro.htm
The Indian follow focus is on ebay, I'm looking at getting one myself. The matte box is a cavision. Cavision also have a sunshade that's the same size for $85 with a metal mount or $50 with a plastic one. It takes a french flag too. http://www.bhphotovideo.com/c/product/310722-REG/Cavision_LH100M_LH100M_Sunshade.html
I think you'll find it looks like a movie camera with the Mamiya, but if you wanna sneak around you could try something like this-
http://cgi.ebay.com.au/52mm-3-stage...3286.c0.m14&_trkparms=66:2|65:1|39:1|240:1318
wait, before you buy that matte box from BH, note that it has to attach to the lens itself and you will not be able to pull focus. it's for lens that focus internally.