Personally I'd just concentrate on the Harriers
Why? The ability to fly off a carrier was all that Harrier had over Tornado in SDSR - and the last carrier goes in 2014. Saving Harrier without saving the carriers would be utterly pointless.
our first choice was, unlike a much richer country like Germany, to become involved!
Damn right. How could we possibly sit here and watch Benghazi (pop 1,000,000+), on Europe's back doorstep, get ethnically cleansed due to our supposed "lack of money" when the government spends over a quarter of its tax income on welfare payments? The shame of Rwanda and Srebrenica may be lost on Joe Public, but thankfully not on our leaders, amongst whom there is a rare cross-party consensus. Fortunately they chose not to take their moral lead from Germany on matters of mass killing.