OK, one update on this
Looks like I have the sequence number issue corrected. The tunnel does come up, and the remote host at 172.30.201.4 and ping the internal host at 172.25.32.182
however, the 172.25.32.182 host cannot ping back to the remote client. I have a NAT exemption in on the firewall
access-list inside_nat0_outbound extended permit ip host 172.25.32.182 172.30.201.0 255.255.255.240
and the ACL that specifies the interesting traffic
access-list ezvpn extended permit ip 172.25.32.182 255.255.255.255 172.30.201.0 255.255.255.240
But when the host 172.25.32.182 tries to ping the remote VPN client, I get an "expired in transit" message
something I forgot to do here? Not sure why it is doing this