Definately the coolest looking D70 housing I have seen. Delrin is a kind of hard acetal resin polymer from what I understand. It is the same material that Ike uses for his sync cord connectors and could potentially make a very nice, light weight but strong housing material. Interesting choice. Love the classic sculpted Hugy look.
Love to hear what you think of this Lambis, if you find a place to handle the product.
I have always liked Hugy housings. I think I will pick up an secondhand film one at some point just for fun.
I think that they are a good choice for available light. One of their few weeknesses is how strobes attach - which isn't a problem for you.