We made a valve spring compressor like this one:
http://www.pureluckdesign.com/vw/vsc/
I also made a timing belt tensioning tool by welding a couple nails to a piece of angle steel from the scrap bucket. The nails fit in holes on the tensioner pulley.
We made a toe gauge by riveting a small carpenters square and a tape measure to a length of square aluminum tubing.