prohibited items and payment processing

I've run into a bit of a hurdle. I'm developing an online store and the main category is survival kits. Those survival kits all include a small generic swiss army knife/tool. As I was looking at the various platforms like Shopify, Volusion and a few others, I stumbled onto some info that this item will fall under the "weapons" category that most, if not all of the payment processing companies call a "weapon". I started digging a little further and found the following.

1) There are a LOT of stores hosted by the main web store design companies I listed above that sell all kinds of stuff that would be considered a weapon like axes, swiss army knives, saws, etc. Maybe they use a different payment processor but I know at least shopify charges an extra 2% if you use another payment gateway aside from their own.

2) Godaddy.com's customer service told me that anything under 4" is not considered a knife but a TOOL and they THOUGHT I would be fine. I won't run a business on thoughts and maybes.

3) I am still waiting to hear back from Stripe as I had to email them since they offer no phone support.

This item is the main product and will be the bulk sales of my site so I need to get a definitive answer on this before I waste time and money developing a site that will be shut down from the get go, be forced to start over or pay a ransom like what Shopify does where they force you into the arms of another payment gateway and then charge you for it.

Aside from this I have all my ducks in a row but I'm not sure how to proceed here so any feedback is appreciated.

Thanks!