Take a page out of the Honda Civic design manual and use a prop rod. I've only recently purchased a car that has gas struts to keep the hood open and they don't do a very good job. A prop rod will never fail and if it does somehow get broken or stolen, is quick and easy to replace. There is nothing to leak or service, it isn't affect by mud and is lighter than the gas struts, if you are counting grams. Less is more.