Good morning :) well..at least here :)
I could do it , but the overall effect won't be the same. the o with the lion will be somehow lost inside the text, and at small sizes may become almost invisible, or look like a blob.
the best idea (all the people i've asked agreed) is actually the 4 with the lion , cause it can be used as standalone as icon /favicon , t-shirt printing , just think how elegant and cool it will look with the text FIT and only the icon with the 4 , it's self explanatory , which is fantastic for a logo.
if you really want i can make the O with the lion , but please, consider first what i said above. thanks a lot .