@BitMaxz: thanks, but as mentioned in the OP, I am not looking to make it for BTC, but other alt-coins that do not currently have a paperwallet generator, so having a ton of daemons, might be pointless after all.

I wonder, considering it is basic cryptography, can someone shed some light, which php functions shall be utilized to generate a valid wallet & priv key combo randomly and how it can be customized to work for each different crypto coin and it's settings ?