DIY Snorkel

I have been looking around to get a budget snorkel and have come to the conclusion they dont exist so i was thinking about making my own and buying a top for it I was thinking about 4" stainless tubing because it still needs to look half decent a small bracket at the top and a large one in the engine bay to hold most the weight with a flexable pipe to go to the air box i may need to make a bracket to seal up around the entrance of the front guard and my mate can weld and polish it up to make it look real good

Once i get prices for all the bits and if it comes out under $150 ill have a crack.

I want to keep the hole in the front guard about the same as a bought one so if it all goes pair shape i can save the cash and slap a standard one in

Does anyone have a template from one for a 90 mod surf