Ok, 2 things immediately spring to mind.
To have a good/convincing attachment, you should really shave your balding area, which rules out your idea of whipping it off and returning to normal.
Second thing is 2 weeks isn't really long enough to get used to and trail wearing and getting to know the best ways to style & groom for the best results.
Some of us have been wearing for years and are still learning on that front.

You could get a salon to attach a piece and be out the door in no time.
But its a bit like anyone getting a haircut.
It never looks right fresh from the cut.
You always have to go home and sort it out for yourself, adjusting it to the way you like it.

Hairpieces WILL look ridiculous just plonked on your head.
A lot of guys are initially put off wearing by what they find on opening their package and seeing the equivalent of a dead animal!
Have you watched some youtube videos? You see lots of pieces being attached that you'd think could never look right, but after cutting & blending & styling, they start to look like real hair.
Its great that you have the time & money, but in your case I think what you really need is patience & tenacity.
Its a big decision and shouldn't be rushed in to, because there is a mental process of adjustment as well as the physical one.
I wish you luck though.