PullRedHandleToEject,
In a practical sense, a good deal of what you are looking for is at:
Airport Engineering
and scroll down to the "DESIGN" bit. The four downloadables there are a good start:
Small general aviation airstrips, Flying Doctor (RFDS) airstrips and bush airstrips are mentioned in various CASA and RFDS guides or PPRUNE discussion (scroll to the bottom for the overrun contribution; there is even a wall poster of them (caution: there are a lot of specific aviation rules to be met in design, and only an airport engineer/inspector has the full knowledge needed to meet all the requirements).
The poster gives a good picture, but its width dimensions are only suited to a light single for day ops. You don't mention what aircraft type you're using, but the RFDS guide gives you dimensions for the King Air size by day and night. If your answer is any different than 18m runway inside 90m strip (or strip and flyover), then I'd calculate it again.
The biggest things to check are length, gradient along the runway (up and down-ness), at least 100m clearable width plus more width for the parking and terminal, and then the approaches having good gradients. Try not to point the runway at the biggest and nearest hill. Post an exact lat/long of the location, and I'll look at it in Google Earth and see if anything else pops up.