As much as Baum is the current flavor of the year in titanium, can we please be honest.
The exchange rate is PROHIBITIVE for buying Baum in the US at least.
These bikes were 3-4k USD in 2009, but the currency spike makes them double that now, and simply not a good deal.
A 3k Moots CR, $4k Moots RSL, or a $4k custom firefly (or if you want the real deal try Eriksen or Steve Potts for $3k) is going to be just as nice as a Baum, certainly the Baum will not be any nicer for an extra $5k.
Titanium shouldn't be painted, so you can save the fancy Baum paint job.
If the guy lives in Geelong, then it might make sense to get a Baum.
To the OP, what is the rest of your intended build? You are a big man and want a big bike, you are being silly to worry about 200 grams in the frame, when I bet we can cut double that through proper component selection. Wanting a stiff Ti bike at 90 kilos is not a big deal, but quoting some arbitrary weight number is going to waste your time and get you on a bike that you don't like. A properly made Ti bike in your size is going to weigh closer to 1400g I think.
Part of why your carbon bike rides so crappy is that you are heavy and it is too stiff and light. IF they made a Ti bike as stiff and light as your carbon one it would ride like sh$t too.
A stock titanium bike from any number of good shops will be around $3k and suit you great. A custom built frame from a small US based builder would run you $3k-$4k and provide a better fit potentially, but likewise ride great. If you are doing a complete build then put some money into light, stiff and fast wheels, you can cut a few hundred grams here and end up with something really awesome.
By the way, I think what makes metal bikes so nice is that they do have some flex, but a well designed machine will flex sympathetically to your pedal strokes and increase your effective momentum.
Here is a Moots CR in size 61.5 which means an effective TT of 595mm and a 130 stem. Rider is 1.95m and 100kilos.
We put it on the scale and it said "who gives a sh$t, go ride"
This bike could drop another pound maybe going to SR, if it was an RSL with Cannondale SISL2 crank on BB30, ultralight headset. The thing is buddy, you tried the ultralight carbon thing and it wasn't for you -- no need to replicate that mistake in a new material by going for an unfeasibly light frame. FYI proper fit and a good carbon bike would get you light weight and a good ride- not all carbon is jarring or racey.