Hi,
The seem to be 6 possible bits to customize, ie the blade, scabbard etc I think that's what you mean in your description.
If you just want an exact copy of this web app without any modifications, I can probably do it within my bid amount and timescales, and probably a demo version we could discuss over within a day or 2 however I would need a few bits of information beforehand and also it would help to have the graphics/models used in this version. I'm assuming you have those already to hand.
The info I would need is to do with payment processing etc. for instance would you be using Unity's built in IAP system or another propriety one?
I find it's always best to have a chat on here first to iron out things first before accepting any work, so that everybody is happy with the end result.
All the best
Chris