Charcoal on Trottle body car

[arno]

Hello,
 
I did several conversions to trotlebodies on Caterhams.
 
I knew ofcourse that we removed original management and other things such as charcoal cannisters.
 
Now i’ve 1 friend missing the charcaol cannister on his car, probarly a less good ventilated garage?  or whatever.
 
His wife is complaining to him about the smell in their garage.
 
My question; Is there a aftermarket system to manage a charcoal cannister system....  Or i can i use the original, but how to manage it... 
 
Kind regards,
 
Arno