Hi Bratsdad - Not sure about the IP32, but later IP's including IP380 had port lights very similar to (or exactly the same as) rectangular lights from Marine Depot Direct. The link below is for IP380 ports. If not these, check out the other sizes.
www.marinedepotdirect.com/stainless-rect...-portlight-1423.html. Usual disclaimers - no interest in these folks. (but I had good experience buying from them)