on ladder is it possible to get a shako for pul or ko or even both atm?

You can do a search in the trade forums for Shako and then the runes and then compare prices.

I don't think so. Shako is worth much more than those runes at the moment.

In theory I could tell you the correct value but you should really learn to use the search function.

Highly doubt it, shakos average around 70 fg atm on ladder softcore and a pul rune is around 15.

As users have suggested above you can use the search function to check the value of the items you're selling and wanting to buy.