You'll be fine. Pretty easy to rebuild too! Which you need to do. Research Vespa intake patches and opening up the intake(put a hose clamp on!!!)
Vespa crank seals have led me down some wild carb tuning paths. Seriously just replace them before anything else you'll think it's a ton of different things before you replace them...Easy to do as your gonna wanna open that intake and have to split the cases for that sooooo.