Database: Medical Translations for Migrants

We want to create a database where bilingual volunteer medical translators provide translations for migrant and refugee populations. Each medical translation would be translated from English: recorded in written form and audio form (many migrants are not literate in their native language), and eventually made available to doctors around the world-- but for now I just need a system that collects translations. Volunteer translators would be asked to input their languages manually (along with their latitude and longitude), because the system would need to match up location-specific translations with patients (example: we would want a Haitian patient being seen in Holland to be matched with a Haitian-French medical translation and not a generic French translation). The system would allow translators to modify translations for their language: so each written translation would have to be permanently saved with the identical audio file as they can be modified. Users within the system would then verify each others' translations, and this would also have to be noted within the database. (In this way we are trying to build a kind of Wiki and a kind of social network) Again, at this point we need a database that would collect data about volunteer translators and translations: "opening" the database for hospitals around the world to use would be a separate project. This project was run by three volunteers (including myself), but we lost our volunteer programmer. I am funding this from my own pocket, and would be happy to work with an overseas or student programmer, *but* have heard nightmare stories about non-completion of projects and timeframe overruns... I have a feeling that a lot of this could be done using already-existing third-party plugins (to record audio, for example), but it would be nice for the programmer to explain a bit about him/herself, past projects, etc.