I'd just get a new router or DD-WRT. If you are spending all of the money on a Raspberry Pi and all equipment you should probably get a router that is free*. H

I'd just get a new router or DD-WRT. If you are spending all of the money on a Raspberry Pi and all equipment you should probably get a router that is free*. Hell, add a wifi dongle, and now you have a kindof-good router.