Thanks for the positive comments guys... muchly appreciated 

Dave; the flipper links come off pretty easy, i use a small pin punch, slightly smaller then the diameter of the roll pin holding the link into the plunger and a hammer and tap them out. I sit the plunger onto the jaws of a vice, with the jaws opened just enough to cradle the plunger to tap the roll pin out. it only has to come out enough to allow the link to be removed. Then just hammer the pin back in when installing the new links.. easy peasy 

i went to do the same thing with my Zac Universe, change the flipper links, i was going to use Wms plungers and links but the links were the wrong length 

Thanks for that detailed explanation Mitch .  Will give it a go soon