There's no precise guide for the points because the points gets scaled with map setting and game pacing.
There's a base cost anyway. Like, say, Bell Tower costs 128 production points. When you select a unit, you see its current cost in the bottom summary. When you select a building you see... the current city statistics in the same area. So the only thing you can figure out is how long it takes - at your current settings of tax and your building sets and inter-city boni, etc - to build.
The tech tree... is always shown in the tech screen. I'm not sure what else you could want from it?
The same. Cost in research points of each technology. You only have "how long will it take to finish this" estimates, which includes learning everything before it, and assumes that nothing changes. Not that Civics costs 12pt.
I can find that information. I have to delve into the install directory, open up the data file, submit my poor eyes to the eyesore that is XML. And then alt-tab back into the game. What I was hoping is to get that information in-game.
The buildings available is complicated because there are 4 different "sets" (outpost, town, fortress, conclave) of buildings. You can see most of them just by opening up the build menu on the appropriate type...
You forgot the buildings linked to ressources, by the way. And the faction-only buildings.
Sure, there's a lot of buildings. Ok, where's the help screen where you have this list? No? Nowhere? I mean, there's the XML describing every single possible building. Why isn't there a help function that shows the list, and decodes and prints the XML data into human-understandable help text (or, rather, simply picks the current data in memory, and prints it)?
It's one of my main complaints about the game : there's simply no reference for it. You get tutorial videos, but no Civilopedia.