125-200cc Which parts for the best bike build

I'm very fortunate to have three little huskies in the shed. My wife and daughters both trail ride as well. I would like to put the best mix of parts on one for my race bike for next year.
The bikes
08 cr125 stock cr suspension , air striker carb, 45mm shivers
09 wr144 revalved 50mm closed chamber, lectron Carb
10 wr125 stock we suspension 50mm open chamber shivers, stock tmx carb

This past season I raced the 09 wr144.
I have a 165 kit sitting to go on and the sx pipe for the 08 (I was planning to make it the 165)
So I'm just looking for suggestions on the best possible suspension and frame combo. I'll be having the forks and rear shock done. The bike will be raced in tight east coast style single track.

I vote for 165 on my10 wr125 with the 50mm cc forks n lectron. Sell the pipe on here n get one that fits the 10 or see if Walt will do ya a changeover deal?
Or sell a 125 top end or send over n get it 165d then utilise the fatty. Be good trail bike for misus n girls(better than 125). Wr ignition/flywheel would be had easily for the 08 cr

I blew the seals out of the 50mm cc zokes this weekend. The little 09 has taken a beating this year. It has been my race bike and both the wife and daughter love trail riding it. I ride the 08 cr125 trail riding. The 10 hasn't been out yet as we didn't have room to take it with us this weekend. It has a street plate so it will be getting riden this coming weekend in the final enduro after I swap a bunch of stuff off my 144 on to it. I would ride it as is but the race means too much as I'm tied for first place in the series with another rider so my motor and suspension from my 144 will go on it.