What files I can remove from XPhoton package to shrink it?

I’m trying to update my XPhoton version 4.2 to 4.3. To fix a bug where the XPhoton application is crashing. I have downloaded the whole package but it seems that it takes a lot of disk space to install it. I don’t want the installation of this to take more than 64 MB, since I’m running it on a 128 MB flash card. I have tried to remove some font directory that I think I don’t need but I got errors when I’m trying to run it. Is there anybody who knows what can be removed. There is so many fonts I can’t imagine I need all of them. Also it’s to run on a touch screen so I don’t need any keyboard configuration. If I know exactly which fonts will be used can I remove all the others?

Thank you.