Classic Fifty controls

[MNhunter1]

I’m having a heck of a time with the shift and throttle control installation for my ‘87 Classic Fifty. Lost the NLA 10-38069 spring actuator screw for the shift cable retainer somewhere down the cowling. Anything to be worried about there, or is it all pretty much sealed down below? Also, anyone happed to know the screw size? Looks to be about a 10-24, but may be metric? What’s the best way to get that screw started without losing it down the midsection again?

Additionally, how in the world do you get to the Phillips screw head for the throttle cable retainer with the bottom cowling in the way?

This is much more difficult than my ‘87 35hp, you’d think they’d be somewhat similar.

Thanks!