Corny Conditioning from Cold Crash-Room Temp

[surfer69]

For the first ever time I have too many kegs for my Kegerator.
I've cold crashed a Davy Crockett Hop Rocket & a Lions Pride and transferred into Cornys.
Purged the air out with Co2 and sealed up to 40psi.
I can't keep them cold anymore, should I top up the Co2 periodically until I have room in the Kegerator to cool down and force carb ?

Thanks in advance