distfile questions

[Edward Sanford Sutton, III]

  On a couple ports I am working on, availability is only in the form of 
cvs/svn. I made a temporary prefetch section for my own convenience which 
calls up a particular revision off the server, compresses an archive of it, 
and places it in the distfiles directory (thus leaving fetch happy as long as 
checksums match). Is there a preferred way to handle these cases other than 
my temporary code or putting it on my ISP's provided webspace which may cap 
out due to too much monthly upload (and the filetypes may not even be allowed 
anyways)?
  Another strange occurence I ran into was expanding the functionality of a 
port through available addons while I was updating it. It is in the current 
state of a combination of  tar.bz2, cvs (which I turn into a tar.bz2 on my 
side), and a .zip but the port got a bit complicated in trying to get it to 
download the .zip but not touch it further (and then I manually tell it to 
extract it to the correct place, it is just additional data files). Otherwise 
I have to pick between tar.bz2 files working or the zip file working since 
the code to extract one fails to process the other correctly.
Thanks for any feedback,
Ed Sutton