Question [Q] Clone on P999 phone to another?

Hi

I bought a used T-Mobile P999 phone for my wife. After installing the LG Update tool on my laptop, it now has the latest baseband( March 2012) running the v21y version.

I then bought the P999 from Wind Mobile. I now know that the LG Updater Tool will not let me go about v11h.

I got a Stock Rom from the web for T Mobile P999 and flashed the Wind Phone. Everything was updated except the baseband which is still June 2011. Is there a way to basically clone my wife's T-mobile phone into my Wind Mobile phone? I tried updating only the Kdz file LG_KDZ_FW-Update_OfflineFix but I ran into some issues; not sure what I am not doing right but the update would not complete as described in the documentation.

I was running EaglesBlood 2.3.7 Rom until recently; however I was having frequent shutdowns lately, freezing when the alarm is snoozed, bluetooth freezing the phone ... I initially thought it was the ROM but now I realise that it is the baseband that needs to be addressed

Thanks in advance