Sarmad,
ACL's as a workaround for NAT can make a huge mess If it was possible, and would be very limited. I tried to find a way to do this with ACL's but we need the ability to change the destination IPv4 address as NAT does. Currently EXOS ACL's do not support changing of the destination IPv4 address.
Sorry for the bad news. I would recommend adding a firewall or a device that supports NAT.
Stephen