What makes you think the 105,000 of the MAF are all fighting
soldiers?
In terms of fighting men,
yes we still outnumber them for
now.
However in a war of attrition the MAF will find it easier to
replenish its losses in personnel then the SAF, assuming it passes
out the draft and gets its replacements via conscription.
So in a short war the SAF has a distinct advantage in both numbers
and technology, but in a war of attrition the advantage will
eventually shift over to the MAF, who (assuming they play a Soviet
WW2-style draft game) will be able to bring more and more people
into the fight.