I'd be willing to part with my DIY Manhattan Lcd 7.2" . it's got dual component and HDMI inputs and a variety of display modes,audio return. Not camera mountable though. Here's a pic of the very monitor.
Hi. Are you still looking for a monitor? I have a 7" Marshall VLCD70P-HAD that I used with my HPX-170 (recently sold). Excellent monitor in great shape. It is the same as this monitor that is currently on ebay, except mine has the Panasonic battery plate and does not come with the hard case. Also includes 3 rca-to-bnc adapters so it'll work out of the box with the component cable that comes with the 170.