It's hard to know what to sugest, as Funding in Scotland is slightly different than in England and wales, Even if you had been England being T2 still would make pump funding very difficult, as the NICE guidelines are based on T1 diabetes and sadly not T2 as well...
About the only thing I can suggest is google for the INPUT website as they might be able to advise a lot better than any of us could on here, or direct you in someone who can..
It does sound like you've got some very high insulin residence issue's which needs to be addressed somehow, either by having a closer look at what's happening in your diet, there are stronger strenghs of insulin, U500 which can be imported from America, under a special licence for individual patients might be something for your diabetic team to look at..
Sorry couldn't be more helpful