There are 2 differences between a true bookshelf and a 2-way standmount.
1 - Efficiency
2 - Bass
A true bookshelf is more efficient and has less bass output as measured anechoically, but when pushed up against the wall has better balance.
So, assuming you can't find a true bookshelf, you could always use tone controls.
Also, in your price range, call Fritz and let him know what you have in mind, he could whip something up for you. :)
1 - Efficiency
2 - Bass
A true bookshelf is more efficient and has less bass output as measured anechoically, but when pushed up against the wall has better balance.
So, assuming you can't find a true bookshelf, you could always use tone controls.
Also, in your price range, call Fritz and let him know what you have in mind, he could whip something up for you. :)