As Dennis says ^^^ - clean the points now, but do get hold of a spare set and fit them when you get the chance. I've not had any problems with double points.
I can't help noticing that ESM sell mechanical fuel pumps to fit the Marina for only £18 - do these or Mini items fit the Minor, and if so, why don't people fit them? Darn sight cheaper and simpler
And it will solve any hot weather running problems ! Two slight downsides - can't fit secret switch to it - and after the car has stood for a while - it needs churning to pump up fuel before the engine will fire. Upside of that is - at least some oil gets round the bearings before it fires! Every cloud has a silver lining.