Wholesaler to RRP OpenCart Mod

There should be in product data a wholesale / cost section.

So the wholesaler can put there price in and then the tax class gets added on to that and that will be a base price and then another field for RRP Price which shows up on products page and such.

And the EX Tax would be the wholesale cost price.

It would be a good module to make up and sell as most computer store and game stores deals with this.

Example added in image

I would pay some one who has experience in this to do it? and then they could re sell it on open cart Please PM me if would like to make mod.

Not sure what best format it should be either vqmod or separate mod for open cart v1.5.5.1+