Bealola, I would urge you to look at the tree instore. My first impression of them was that they are not very stable and could easily be knocked over. My theory was proved when a lady was trying to examine one of the glass baubles on the larger one, the bauble came off in her hand and the tree crashed to the floor, lots of broken glass baubles! What is worse, it was on one of those display platforms and any passing toddler could have knocked it down.
I agree with your plan to tuck it into the corner, but would the 4' tree be easily seen?
Have you had a look at other internet providers of Christmas trees to see if they have anything similar/nicer/cheaper? Or garden centre websites, which might have some sort of decorative conservatory type tree that could be painted or slightly modified to what you want. I know you can get fake bay trees, for example, you could tread your own lights through. There are often cheaper ones with fake roses on for wedding decorating, rip off the roses and style them yourself. I'm sure The Range had some.