308 manifold

So my manifold gasket is weeping coolant and I've done a dodge sicaflex seal up for now.

I'm thinking since I'm gunna rip the manifold offfor the gasket I may see if I can find a better manifold without breaking the bank..

I'd like a manifold without all the pollution crap new or second hand that I can give a bit of a smooth inside and out and a lick of paint.

Can anyone tell me what my options are? My understanding is the old pre pollution manifolds need work to fit? Is there an aftermarket version applicable to my block?

Car is a vc commodore with a va prefix 308 running 650 Holley.