OK, as promised, here is the link about how to build your own portable fly tying bench.
Go to my website [url=http://www.dupuy4.demon.nl:56ef6]http://www.dupuy4.demon.nl[/url:56ef6] then go "KLIK HIER OM DOOR TE GAAN" (this means enter to continue)and go to NASLAG.
Follow the link build your own bench.
Here you can find the complete building instructions with drawings.
Good Luck!