I've been thinking about doing the same thing, my hood prop is a pile of &*$# and this is what I've been thinking of doing, on the cheap: take two struts off the hatch of a corolla station wagon in the yard. they're designed to hold the hatch (probably heavier that the hood) up horizontally. They're pretty tough.
Just a thought.
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1990 5spd V6 Camry (Still kicking at 393,000km) 1991 Celica GTS -- Pappa needs a 3SGTE...and AWD for all this friggin' snow
Honda my A$$, you just can't kill a Yota...