Fiberglass cowl hood questions.

[Nhoechst]

Im thinking about getting a 3" fiberglass cowl hood to replace the stock one on my 72. I know that I will have to replace the hood springs also, but which ones are strongly recomended? Also I read that once springs are put on that won't break the fiberglass/stress it, the hood won't stay open without a prop rod. Are there any springs that won't put stress on the fiberglass hood, but can still keep my hood open without using a prop rod? Or anyother suggestions that will aviod using a prop rod, but still use the fiberglass hood.
Any assistance is appreciated.
Thanks