These cards have also chips, so it would need to be copied as well.
No they don't. The code for a prepaid is not 201. It's 126, thus the chip is meaningless for an atm. An atm would know not to read the chip. If you're talking bzwbk or other polish cards the code is 126, so I'm pretty sure they work in all atms with just t1+t2. Tried and tested already. The chip is only used for 201-enabled POS transactions.
Let's move this discussion to pm if you're unsure. I can answer your questions you might have if you don't know how to, or what to do exactly.