Good afternoon snegron,
I have a few old meterless folder cameras I use with a hand held meter. Basically, if you meter for the light falling in a certain area, then you just set the aperture and shutter and go with it. Usually in daylight situations I just take an open shade meter reading and a sunlight meter reading when I start, then just check it an hour of so later. Even using those with a 1937 AGFA Jsollette and transparency film, I rarely ever get a wrong exposure, and it is often quite close enough to use.
I think you could do this with an inexpensive meter, like an old Sekonic or Gossen incidence meter. The one I use is a Sekonic L-358, since it stores several readings. However, I have that meter for work, and it might be more than you want to spend on, or more than you want to carry (light weight, but not very compact). The old L-398 might be better, and certainly cheaper. If you want really small, or something to mount on the accessory shoe, look into a Gossen DigiSix.
Ciao!
Gordon