ron - you are creating gainful employment for boaty, you know.
Though your idea is good, I would cut the Overseas Aids Budget by £3.4bln from its current level. This would not mean abandoning crucial aid for defence, antiterrorism, trade, and refugees, rather a rake through all the corruption programmes and suspend those. Keep this going for 3 years and include the restoration of British country lanes viz. potholes and drainage too.