Hi there and welcome. Sadly, there's nothing we can do here to change the stove's quality or safety. But perhaps you really just want the stove for decorative use? If so, it should be fine. As to helping with getting a good hearth in or helping set up the flue pipe safely, that we can do now.
There are 3 components here:
The hearth which is the base that the stove sits on. the construction design of the hearth is dictated by the stove design. Some stoves need a very minimal non-combustible surface and others need all the hearth they can get. With an unlisted stove the hearth must be built to the maximum code protection. As the webmaster noted, your floor should easily support a layer of brick because the weight is spread out. but a veneer of brick probably will not fit safety requirements for RJ parlor stove. There will need to be an insulation barrier to stop the transfer of heat from the bottom of the stove to the wood floor under the hearth.
The stove is the engine of the system. Unfortunately the stove you have is neither UL approved or particularly well built. If you are going to use it a few times a year, then, with caveats, it will work. But with the roaring heat of a strong fire, you don't want to be worrying about casting failure, air leaks, and poor design leading to an uncontrollable stove. That is why the caveats.
The chimney (aka flue or stack) is equally as important as the stove. Particular care needs to paid to clearances, sizing, length, material, support and location of the flue. The flue must be well designed and safe to tolerate the high temperatures of combustion. There are no shortcuts here, though there are alternatives depending on the house layout and location of the flue.
As a gentle recommendation, if it were my home, I would sell the stove and get a decent one to start with. It will increase your saftey an confidence. If you go this route, we can help somewhat if you would like. The best place to start would be detailing the size of the room it's in, how large the house is, what is the town or region, how well insulated the house is, and what the budget is. There are a lot of good used and some very reasonably priced new stoves on the market, but we'll need a little more information about your goals and budget first. Hope that helps. If you have specific questions, fire away.