First thing it is 320K not 540K as reported if you read the
whole thread.
Well, could SAF equipped all of them?
First thing , SAF in the early days was still developing and only
fully equipped the frontline Div i.e. 3,6, 9 Div etc, the others
who were not in combat vocation during NSF days were ususally
posted into PDF formations.
PDF formations could easily form at least 3 Divs or more( in term
of number).
Then PDF formations did not go thru much serious training and I
doubt that SAF could equip all these NS men then.
But things started to change I think in the mid-80s, the factors
could be:
1) SG is getting richer becos of growing economy, now SAF could
afford to equip more NS men.
2) SG arms industry is matured enough to produce almost all
equipment needed for any Infantry Bn.
3) In the 80s, SAF was getting new weapons for the frontline Div ,
thus there were surplus of older weapons that could be channelled
to PDF formations.
By the early 90s, PDF formations already have more than 10 Bde of
light infantry , mainly consist from Service vocation NSF converted
into infantry NS men, combat trained NSF from schools,TC etc, and
older infantry/Guards units.
Their roles is different from the frontline Div and phyical demand
is lesser but they are all fully equpped with all the neccessary
infantry weapons plus support with armour etc.( PDF have armour
too!!!) And go thru 13 years( 10 years now) NS training cycle
too.
PDF formations lack of most heavy equipment ( arty , more armour
etc) but that I believe it is either changed by now or in the
future.( below is my viewpoints)
The reason is that SAF has more surplus weapons now than ever,
M68/71/114 howizters, M113 APC?, SM1 in the future etc.
You may ask, PDF is not arty and armour trained , who will be
manning them???
Those older armour/arty units or MR units will be manning
them.
So could SAF equipped all of 320K , it is a definitely YES!!!
In fact, I think our 2nd line PDF formations will be better armed
than our northern friend!!!!! 
