Well your going to like this.
I initally got mine from England.
Paid $100 shipping....back when I was working, so no big deal.
But then I found it in a store on line in Barrie Ontario.
Which would have saved me $100.....ouch!
I will find that store and get back to you.
With American exchange, your laughing.
Its only $300 Canadian.
I am also told that the front dive planes are not needed.
I added those in because I thought the sub would handle better.
I am told that they are not needed for this boat.
Being a newbie and not having had a maiden voyage, I can only repeat what I have been told. I have no real experience, save building the model.
One important note.....DO NOT glue the front hull together....put it together like the back hull with a removable portion. That will allow better access to the front end cap. The directions indicated glueing the front hull together, which I did, but it turns out it is much more in your favour to have it open up as well. So far I have been able to get past that by having a gentlemen show a way of attaching the guide tube to the front thread with JB Weld while in position. I was stuck with that last issue until I saw that thread....then I finally was able to finish this build.
the kit comes with 85mm O.D. O RINGS, the guy at the store recommened 90mm as the end cap is 95mm and he said that the O rings was too stretched, and would split easy...so I got several 90mm and they fit better.
the kit comes with the motor indicated to wire it backwards. Either you have to change the + - or you have to buy a left hand prop, which I am told will give you more speed, longer run times, less drain on the battery.
Mine was wired as indicated then corrected. I did not get a left handed prop. I was told about the left handed prop option after.
Here is the thread from Big Sax and his water bag conversion, where I detailed my build.