I've done a lot of research and found that almost all the parts of the Honda CRF230f are interchangeable with the 196cc TA200 Phantom. When I ordered parts to do a complete rebuild of my Phantom I wondered way the main bearings were so big. I now know that they are big because they are for a bigger CC bike. I checked a lot of parts numbers between the Thai TA200 parts and the OEM Honda parts and they come out as the same.
So far I've ported, polished and relieved a new head. I've ordered a 240cc big bore kit from CRFsonly which comes with a Westco 11-1 compression piston and a performance cam. I've ordered a new cylinder which I will have bored from 65.5mm to 67mm. I also ordered a CRF230 crankshaft and rod assembly. I had already done some carb and jetting tricks to go along with my Chiang Rai Saddlebags duel exhaust. And of course I have my English language TA200 shop manual or I wouldn't even attempt this project. This alone took me two+ years to find and $$$$. I was told for 2+ years it didn't exist, but with the application of time and $$$ I proved that wrong.
I will post progress reports as I go along. I should end up with a monster Phantom with 240cc and from the outside the engine looks stock.
I'm researching it now, but I believe that the CRF150F clutch kit will fit and CFRsonly has a race-ready heavy duty clutch kit for the CRF150F.