I do actually have a camera pouch already, which I use during gigs. However I have had that searched in the past, so I go even more stealth than that if I think they are going to search me. I'm not normally paranoid about being filmed or searched by people but given the amount of concerts I've recorded, I'm not so keen to slip up. Once was enough. When I was younger I probably rode my luck a bit.
Anyway I ordered the PCM-M10 for about £170 and also got a second hand MZ-RH1 for about £150 because I have some legacy SP recorded minidiscs. I might sell my existing MZ-NH900 but some of the buttons are dodgy now, particularly the menu button. So it will be a case sold for spares or someone who doesn't mind spending anything from 1-5 minutes trying to get the menu to come up. Very annoying when you need to change minidiscs and have to then reset the mic setting to manual.
I currently use SP-BMC2 mics with glasses, not that I need glasses. I connect this to a headphone volume control wire [antentuator]. Whilst not as good as a battery box or pre amp, it was cheaper at the time. I will upgrade the mics in the future.