Hi Jason,
I do not think you will be able to NAT pool ip to public ip address if you are terminating VPN clients on the same outside interface where you have configured ip 5.5.5.5 as described above. If you have enabled "same-security-traffic permit intra-interface " , the vpn client traffic will be redirected to internet with source ip 10.180.180.1-5 and not 5.5.5.5
The only solution i can think of is that you can do vpn and then do telnet to router/host in 192.168.1.x subnet and from there initiate telnet/ssh to other hosts in your network.
HTH
Saju