Slax Linux + pygame (or any other linux that boot from a usb stick)

Hello,
i search for people who are interested or even experienced in making a
linux on a usb stick (<250MB) with the current version of python and
pygame.

So far i managed to build a Slax Linux with python 2.4 and pygame 1.6.3
because both packages were ready to download. 

However, i want a system with  pygame 1.7.1 (or newer).
Also need wxpython.

Is there any experienced pygamer out there who can help me to understand
how to make packages for slax from source ?

thanks,
	-Horst