Weird question about lengths ponies G1

[Rainfeather]

I am planning building a display.. I want to know the maximum dept I need in cm.

The largest pony's are secret suprise pony's I think? (Not planning to collect My pretty pony or plushies).

Can someone measure one of them from the tip of her nose till the outer curve of the tail (when tail hangs nice and easy)?

I am planning to make these scenic boxes for certain sets. I would like them to have the same dept so I can stack them neatly.

[hathorcat]

Because of their pose a couple of the Precious Pockets are perhaps a little longer than the Secret Surprise. Would you be collecting them as well?

[Rainfeather]

Yes every G1