I hadn't thought of bullet holes! I know someone who might quite like this idea...
I have added some screenshots (currently wrestling with reducing whitespace) and the code I amalgamated from a few sources. The dialog is being created just fine, the canvas ditto, and I'm able to load in JPG or PNG images. But it doesn't seem like the placement is doing anything at the moment. Once I figure that out, I'll update the wiki.
The EF2000 is not part of the main package yet as it's license is currently CC, but almost all the elements which require that license are deprecated now - all except the voice warning system. Once I can find a suitably bossy sounding middle-aged lady to record custom ones, it's all clear to go GPL again
That, and it's not really ready for release yet - V2.0 is expected in early 2015, but I expect to have a staged pre-release out within two weeks - if this is working then, it'll be included - and will point a link to it's own corner of the FGUK download hangar in the meantime.