Thanks Danster, post prices when you can.
It is important to note if we're talking bare heads or not. A lot of parts for these heads may be very hard to find so if they're not included we may need to get a "lead" on them before buying. An appropriate intake manifold, valve covers, and possibly rocker arm assemblies come to mind right away. Forgive my ignorance, but do they use "standard" headers i.e. standard non-raised exhaust ports?