What country are you in? In Australia, there are a variety of stores, eg. Dick Smith, JayCar, Altronics and the international companies such as RS Components, Farnel, etc. They all have web sites.
The 4060 is a CMOS counter, if you post the circuit (or the part of it containing the 4060) we may be able to assist. It may be possible for you to use either the 4020 or 4040.
The KA2248A 950B will not be suitable. There are thousands of different types of ICs with 14 or 16 pins. (I can't remember off hand whether the 4060 has 14 or 16)
Len