I normally don't reply to threads like this, but your post caught my attention because of two things, being 95kgs, and also the mention of bunny hopping. You don't usually see those two things together.
Lucky for me that I included this info
When I see a pothole or curb I prefer to fly over it rather than around.
Frame: Custom Ti --- To get a ti frame stiff enough for you it will be significantly heavier than a carbon. Your biggest weight savings could come from a carbon frame in place of ti. I'm going on the assumption that weight isn't everything with this build and you really have a strong desire for a ti frame.
Correct. I have a carbon road bike and now I want one with a Ti frame. Hopefully I won't end up with a 16lb $$$$ anchor that I regret buying!
Fork: ENVE 2.0 or THM Scapula ---- Enve. The Thm is a great fork but the Enve 2.0 is better for heavy riders.
Good to know.
Stem: Extralite OC 120mm --- At your weight you might find you have issues with the bar slipping in the stem. You should consider something more robust such as Syntace/New Ultimate.
I have experienced this before with the Extralite stem so maybe I will have to add ~30g and go with the uglier but stronger Syntace F109.
Housing and Cable for drivetrain: Nokon ----- Alligator I-link mini or Aican would be the best choice.
Fine - happy to try that brand.
Brake Calipers: Zero Gravity Ti (Also considering M5 brakes....not much chatter on these lately?) ---- At your size I wouldn't consider either of these. EE would be my first choice.
You aren't the first person to suggest EE so I will reconsider. Too bad they aren't any lighter than my ZG Ti brakes.
Crank: Campagnolo Super Record Ti 11---- If you stick with the Campag avoid the Ti version. Like others mentioned the M3 is probably a better choice. It's stiffer than the Ti Campag, has an open bcd, and is lighter. You mentioned that one reason to like the Campag was a narrower Q-factor but in all likelihood a narrow q-factor isn't what you need.
If I go THM do you have much to say about the Clavicula vs M3? Is one stiffer, lighter, or more durable? I really want/need a 36T or 38T inner and a 52T outer which means compact with custom rings.
Seatpost: AX Lightness Europa--- No way would I recommend this. The stock Europa has an 85kg weight limit and even then it requires gentle use. I'd have a custom one made from either Schmolke or Mcfk.
I have been riding a Europa for five years...but maybe on borrowed time
Are you able to commission a custom post from Schmolke or Mcfk?
Headset: Extralite---- I wouldn't recommend this. The micro upper bearing is too finicky and lacks durability. A Morion from Kcnc at the same weight is a better choice, but best still is to take a few extra grams and go with a Tune.
The Tune should fit the bill nicely while still being a lot lighter than my old fave from Chris King.