Good morning Peter. That is good advice. They did not look too bad when I first put them on the deck however when I put the main "bits" on it was immediately evident these would not work. Anyway some of my wood joins especially by the sliding mechanism are not good, so a redo was probably always on the cards.
Thanks Richard. Unfortunally the pumping mechanism would not fit to the main "bits" properly so a redo is unavoidable.
Good morning Gentlemen. Thanks for this. In SA there is a company called rare woods which has some awesome wood. My problem is I don't have any power tools so to cut by hand is a tad difficult for me. They do cut some wood but not small enough for modelling. I may give it a go out of necessity 

 .  For me to import product is just silly expensive as our tariffs are worse than Trumps 

.Cheers Grant