1. Hokay, although I'd prefer 12 gold and a composite bow. My view on Themiskyra's melee infantry is that they're competent but just don't really hurt anything - you have to rely on sonething else to actually kill enemies.
2. The alchemist has useful paths... that's about it, though. I don't know if I'll ever get around to summoning one, but as this is the first time I've taken Themiskyra into MP I'd rather not suffer from not having the option. Oddly, there is a weak thematic link here. The Scythians (Amazons being in theory an offshoot of the Scythians/Sarmatians) were at one point in their history home to some pretty advanced metallurgists.
4. I could've sworn I only got non-commanders... it was a while ago, though. I'll take your word for it then, and double up the cost.
5. I'll put those in. Aim I can see, and I guess I can see casting PotS and LotNS for the +1 pen. I guess we'll see if it compares well to Soul Slay (I think it may be a bit better against thugs/SCs, but maybe not as good against armies).
Edit: maybe Gifts from Heaven is a better comparison? Same low acc. (with the changes, at least), 3 effects, but GfH has more AoE and doesn't give a save.
The only thread for Themiskyra is
http://forum.shrapnelgames.com/showthread.php?t=43683 - it was originally Frank Trollman's mod.