I'm struggling to understand your assessment of the risk. What risk? I will provide the lender with all the documentation to comply with Anti-Money Laundering Regulations which is good enough to satisfy a mortgage-lender when they lend you half a million pounds. This would include my passport, utility bills, bank statement, HMRC statements, along with proof of the funds, and letters from Companies House and HM Treasury.
I already have a draft loan agreement based on the plain-English standard clauses in law, so absolutely no need to spend 500 pounds on a lawyer. It costs about 200 pounds and takes ten minutes online to file a small claim against anyone who doesn't pay you. So what's the risk? You think I'm going to skip the country with 2500 pounds? Not very likely when I've got over 11000 pounds coming my way and a life here in London. The risk that HM Treasury won't repay me? Don't worry, the Brexit bill won't be that large!

So negligible risk if you follow their stated process for recovering funds (see direct. gov. uk / guidance/apply-for-a-repayment-after-a-company-has-been-restored-to-the-register-cb4) which I'm doing.
In the enormously unlikely event I can't recover the funds from the Treasury, I can repay the 2500 from other means in a slightly longer time-frame as I have clients who owe me money (good old 45-day invoicing, you know how it goes) plus I'm selling a property for 670 thousand pounds (yes I can provide all the proof of that also) which should complete in the next 2 or 3 months - so I just need a short-term bridge loan to quickly process the recovery of the 11000 pounds from the Treasury. It's quite simple.
As commented several times earlier, my accountant doesn't lend money.
Any serious enquiries from private lenders still entirely welcome! Full information will be provided!