is it possible to use diiferent sources to setup a dfly system?

[topet]

sorry for the noob question, but im really getting confused on what
docs to follow regarding using pkgsrc in dragonflybsd. would it be
possible to make pkgsrc work in a system with this configuration:
1. base system setup using the latest preview iso from the link in the
dragonflybsd site download page
2. src tarball from the gobsd preview 2 iso (of course, updated later...)
3. latest pkgsrc tarball downloaded from the netbsd site (updated too...)
i cant follow the exact way the dfly docs is suggesting for i dont
have the bandwith available at home, that's the reason why im asking
you this...

hope to hear from you, thank you very much!!!

dflynoob ;o)