These are all UK only qualifications, not ICAO compliant.
The quickest and easiest to do is probably the NPPL(M), followed by the NPPL(SLMG) which is do-able but there are relatively few schools - doing a glider qualification in a short period of time is probably impossible. It is too weather dependent and the glider training environment is based upon regular hobbyist attendance, not intensive training.
There are UK schools outside of the UK where you can do the NPPL(M) -look at
British Microlight Aircraft Association,Home for information, I don't think that there are NPPL(SLMG) schools outside of the UK.
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