the only advice I can give is to also order the rubber mounts, they will probably be so dry that they wlll break off and be unusable. Not too expensive and you'll need three of them.
Other than that, just make sure the top is all the way up or all the way down before you take off the pump for safety's sake, and it's pretty straightforward. Install it, fill it with fluid, and then work it up and down while you add more fluid until there's no more air
Love learning details like this as they expand my knowledge of maintaining my pride and joy