63 slant 6 904 transmission seal and o ring question

Actually, all I really need at this point is I believe 4 o-rings. The one for the dipstick/fill tube, the one for Speedo cable, and one for the 2 shift cables. I am curious if there's a seal or o-ring on the kickdown lever. Didn't really want to have to buy a $350 gasket kit for a few o-rings. Car is a low mileage car that has no previous issues so I want planning on rebuilding the transmission, just wanted to fix the leaks.

I was just hoping someone knew the dimensions of the replacement o-rings. Figuring out original diameter shouldn't be too bad but original thickness is a pain. Too thick and I damage them on install and they leak... Too thin and they go in ok but leak.