Addressing and NAT for 3rd Party Router using ISP subnet

[ccisco630]

Background:  ISP gave me a /29 and an audio/visual vendor has a router they need assigned an IP within that subnet so they can connect remotely.  I am using a 4431 for my network and have an open interface and would like to hang the A/V router to my 4431.  How would I NAT the A/V router so that it uses one of my public IP's but does not overlap with my outside facing interface on the 4431?  A/V router public IP 142.154.xxx.19 /29 and private IP I would like to use 192.168.60.5 /24.  I also want to only allow that A/V vendor to get to their device and not my LAN, what ACL would prevent this?  Any suggestions are greatly appreciated!  

[balaji.bandi]

Simple config to try as below

ip nat inside source static 192.168.60.5 142.154.xxx.19 

[ccisco630]

Thanks!  So say I connect the vendor's router to my 4431 int g0/0/3.  Do I give my int g0/0/3 a 192.168.60.0/24 address and their router will have 192.168.60.5 255.255.255.0 or will their router just have the static 142.154.xxx.19 assigned to whichever interface connects to my 4431?  I guess I'm confused on how the traffic from their router will get out, or does that NAT statement allow it through if I put ip nat inside on my g0/0/3 interface?