Configuring NAT over LAN-to-LAN Between Mikrotik

Hello Team ..how are you ?..

I am trying a long time to setup NAT inside IPSEC on MK.. but i cannot .. So i ll ask help from you…

Follow My case,

I have two clients using same lan Network ip address, and if i have using Cisco ..i could solve using this howto:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/products_configuration_example09186a00801ae24c.shtml

follow attach my topology,

Regards,
rede_vpn.jpg