Ignoring note value when spacing notes and rests

[Phil Holmes]

I'm setting a piece of late 16th century music (it's in Musica Transalpina), 
and at this time notes and rests tended to occupy a space determined by 
their fitment on the page, rather than their note value.  I've read the 
section of the NR on proportional spacing, which does exactly the opposite 
of what I want.  Is there a way to force essentially uniform spacing, 
regardless of note value?

TIA

--
Phil Holmes