I am hoping that someone has knowledge of what I can use to replace this.
Currently the wipers and washers keep on running.
It seems that the button for the washers on the end of the stalk is no longer spring loaded.
I am thinking that a unit for a Hilux 88 - 97 might fit.
Looks similar though suspect the wiring plug is different.
All help and advice gratefully accepted.

think i might have just the stalk with the button il check and get back to you with pics if i do,
cheers

Mine was doing the same thing a couple of years ago.  I found if I hit the wiper stalk it would stop.  did this for several months, but then it stopped stopping.  It was suggested that I needed to replace the whole part, Blinker, wiper & cruise control.  Thankfully someone had the part 
 
I had initially purchased one without the cruise control but the plugs were different.  The seller thought the CC stalk was a seperate item.  Thought I'd mention this so you don't end up with the same issue.  Mine is 1990 Aus Del NA.