Axle Stake Nuts (323 vs Festiva?)

[Aaronbrook37]

I'm on the hunt for new axle stake nuts. Last I checked, M20x1.5 and M16x1.5 respectively front and rear... the right side being reverse thread obviously. Anybody have leads? I'm trying to avoid paying $15-20 each on Ebay ideally. Not sure if that's the same size as the Festiva ones, but I'm a 323 BF driver now.

I've heard new grease caps can be had from trailer and heavy duty equipment makers because they're a standard 1.875" in size. Any similar leads on those would also be appreciated!

[Team Lightning]

Rockauto has the nuts listed for a Festiva. I looked under 1992 and front and rears show as available.