I must admit I think it's much easier to play this sort of thing as hand turned over, finger 2 for the gliss, then as you reach the top, flip the hand over and use the thumb for the top note (also helps create a sense of arrival). Are you prepared to suffer for your art: have you considered cutting your nails?
When I flip my hand over so that the backs face the keys, my 3rd finger is most logical to use because it's longer. You use your 2nd finger, which means you have to tuck in your other fingers a little, right? I suppose it doesn't matter which finger you use. But the landing in this piece is critical, as I have to stop on a high G and then pop off a G-sharp without hesitation.
(oh, I just made a joke but no one will get it...)
Suffer for my art...that's funny...
My nails are very short, but when I flip my hand over, the nails touch the keys. Doesn't everybody's? I don't have time to put on a glove like I did with this one other piece I recorded that has a glissando. In that case, I had about two beats rest, so I could quickly put on a glove and then slide up the keys without any nails noise. No time to do that in this piece. But I'm experimenting with the angle of my arm in relation to the keyboard. Plus the fact that the mics aren't super close to the keys and therefore (hopefully) won't pick up any extraneous sounds, so I think I can make it work.