I'd love to answer the question on the Han head Matt but as I don't have the Han chase, I definitely can't. I was going to use the Han head from series 2. To be honest, I'd be really happy if there was a significant difference that makes it hard to fake. I'm not at all opposed to picking up the chase figures but I do want to open them and don't want the hassle of "proving" it's a real figure. If there's going to be some doubt and the fakes are sufficiently close, well I'll just save the money and avoid the hassle by doing my own fakes/customs.
As yujun says, it's difficult to find a Luke head to spare though. Only one per box with this assortment so maybe there won't be Luke fakes in abundance since people have to break up complete sets to get that head. I can't see people using heads from an early bird set
But those darn Han heads are a dime a dozen
On the brighter side my Vader chase showed up as well. I paid about the same as you Matt but got mine for $79 BIN with the $8 shipping. I've seen some cheaper but I think that's a price we won't be disappointed with in the long run.
Had I been online when (Adam?) posted the Dr. Tongue Luke's I probably would have ordered one. No big deal really though since I might have splurged on other Kubrick's last night anyway