Without seeing the schematic how are we supposed to tell?
Each of those is a binary counter but they have different divider outputs, whether they will work or not depends on how they connect to the rest of the circuit. The CD4020 is easily available almost everywhere, just because your local shop (wherever that is) does not have them, it doesn't mean you can't get them from somewhere else. I'm in a (supposedly) hi-tech area but my nearest component shop is about 100Km away and takes two hours to reach by train. I use mail order, can you?
Brian.