1) sure is. I never do, thats why I've disabled the options, but they can be enabled (made visible) in
VIP\Assets\XML\GameInfo\CIV4GameOptionInfos.xml
I'll enable all of them again in the next version.
2) Ocean travel with caravels? Hopefully not before 1492

I adjusted the cost of almost all the techs, but since I was midgame doing so, I might have "overadjusted" them. Are they taking too long to research?
3) What level do you normally play?
I did some regulations that might have been ideologically sound (IMHO), but is too easy for a human player to take advantage off (or too difficult for the AI to use). Especially the army size reduction via increased goldcost and decreased "free units" (ie % of units that doesnt need maintenance cost due to population size). But also the important Palace/Throneroom tactic needs to be either adjusted by AI weights or simplified).
Though playing on Emperor myself, I do seem to struggle more untill gunpowder'ish than I would do in vanilla. (I just did an early speedy runthrough of a vanilla game earlier this evening cos I suspected the same as you, plus your #4 (resources), but vanilla seemed like a piece of cake. Unfortunately civ (both vanilla and mods) sometimes give you crappy or excelent games (depending on AI and player locations mostly).
mmm. just looked at the diplofiles. just before I published 0.86 I worked on the diplomatic relations, and the file accidently got zip'ed with it. It basically makes AI forget that you declared war on them or their friends "shortly" after, which makes them mostly friendly all the time. Not much of a challenge I guess. I'm going to upload a 0.87 soon where it is fixed.
4) I'll downscale the pop ups some more. already did it a couple of times, but they are still "all over the place" which makes resources less valuable. (though with the guilds there can be early use of multible resource.
But thanks for the input. Keep it coming

it makes it alot easier to balance/adjust/improve the mod as I recently became a father so its limited amount I have for playthroughs