I've tried making an account on E-Goat but can't get past the registration. The site uses the reCaptcha V1 which I think is now expired. Can't make an account
I'm a member on E-Goat - i'll ask the mods about the registration issue you are having and see if they can help. However, you have already been give the best advice here, get onto the AFCO and/or Trade reselection etc.
Driver - mostly civvy in RAF too with mil doing the overseas stuff (not sure how that will fit with your dodgy knee.)
HR - decent choice, get some decent quals and same pay as techies!
Survival Equipment Fitter - someones got to do it.