Skeetendo

I don't think there is any additional font in SGB border as it only uses a couple of letters for each game.

About the other thing, it's quite likely that it won't work in every case - really depends on how much the game has been changed from the (USA ?) release - but why don't you just make a copy of that italian rom file you've got, apply the patch to it and see if it works ?

So what's the problem you're having ? Patching ?

If so, try downloading an ips patcher that runs on Mac.
I don't have Mac myself so I don't really know whether Lunar IPS should work for you or not.
http://www.zophar.net/utilities/patchutil.html

The mac is not mine.i'm only allowed to search the web.however,if i had the possibility here's what i would have done to pokemon blue (italian )
-title screen saying VERSIONE VERDE (yes,capital letters) and with green color from original pkmn green logo
-is 'hp' a tile or a text thing?it would be ps in italian
-ending credits from blue,the 'the end' thing would have been 'fine' from pokemon blue
-any 'blu' would have been replaced with 'verde' ,then repointing text

And who knows if us patch works for pokemon blu (blu is the italian word for blue)