Ok, in technical terms, this would be more complicated than with ETH... and probably more expensive.
No, it should be easier. You won't have to bother with creating your own token. You will just have to send quite a few transactions to addresses you generate. Each transaction might cost you 226 satoshi depending on the type of addresses you use and the fee rate (1 sat/byte assumption here). It will be much cheaper if you fund all stamps in one transaction.
I was looking for a cheap solutions, but I afraid if I use 1 satoshi per byte, I am not sure, that the TX goes through... right?
It will go through. Take a look at the ecommended fee at this website. The fees have been really low for a long time now. 1 sat/byte transactions usually confirm within 24 hours if there is a sudden spike.
