[tex-live] Installing dblatex together with manually installed TL

[Urs Liska]

I'm on Debian Wheezy and have manually installed TeXLive 2013 from its 
website (i.e. not through apt-get)

For a third-party script I'm told to install dblatex.
'sudo apt-get install dblatex' insists of installing loads of 
texlive-... packages, which I don't want to do.
When I download dblatex and run its setup.py script it dies with 'Error: 
not found: latex, makeindex, pdflatex, kpsewhich'

'whereis latex (etc.)' doesn't find anything while
'which latex (etc.)' finds the correct locations of the manual installation.

Questions:
a) is there a way to tell dblatex that I _do_ have TeXLive installed?
b) can I safely (apart from wasted bandwith and storage) install the 
suggested texlive- packages with apt-get without disturbing my manual 
installation? Would I perhaps change the PATH afterwards?

Thanks for any info
Urs