Ral Partha was a very fine range of figures when they first came out. I owned alot of them.
Now I feel they are somewhat dated.
They have very few poses compared with newer ranges. But with the native figures the weapons are glue on.
So you can bend arms some and glue weapons in different ways.
Also R.P.s are true 25mm.
All in all, if you kept them in their own units they would look ok.
I would not mix R.P. and Perry's together.