so hard to answer. the gpu will work with the cpu, but the motherboard? idk. will the PSU have enough power to run the GPU? if you do get everything sorted you'll probably have a severe bottleneck and most likely will not be able to run most games.
The length from one end to the other where a card can fit is about 9inches. The length from the card slot to the end of the side panel that comes off is a little over 5 inches.