Hi,
Well, the alternative is for you to hack into the core code of HikaShop to modify the security mechanisms preventing other users than the user of the order from accessing the order information, and then create a new view to list all the orders on the frontend, etc.
You're up for a lot of work, even if you're a skilled developer, and you'll have issues updating HikaShop in the future.
So it's technically possible, but compared to just using HikaMarket front edition, I don't see any benefit in doing so. Even cost wise, HikaMarket only costs 75€. But the amount of work necessary, by a skilled developer will cost at least several hundred euros, and probably closer to one to 2 thousand euros.