Thanks once again for the reply Wet_Boots;
How about 2 of these, although they do seem large?
NDS 113BC Standard Rectangular Valve Box with Overlapping Cover
I believe these are the manifolds I'll need.
Action Machine MS-TM Sch. 80 1 in. 3-Manifold w/ M Buttress Threads
Action Machine MS-DM Sch. 80 1 in. 2-Manifold with M Buttress Threads