the chamber can be made by scienta, an uppsala company:
vg scienta
the frame onto which the chamber will be mounted will possibly be:
minitec
the positioning of the chamber with um precision could be delivered by thk, i will meet a representative on friday:
thk
a possible breadboard to be mounted in the chamber and other optics equipment can be delivered by
thorlabs
they believe (but cannot guarantee) that the optics parts are vacuum compartible down to at least 10-6mbar. a breadboard mb1530/m (use the search option) fits nicely through a 360 flange, and on the rail support. if we need a longer breadboard, we can have two in series on the rail support.
of course nothing is decided yet about where to buy any equipment. i am just exploring the market.