Your problem really stems from not having Ethernet cabling routed around the property. The idea of the WAP's is to separate that function out from the wireless router. Therefore placing the WAP(s) to best cover the area and negating the need for wireless on the router. Doing it that way means you could just disable wireless on the router and leave it in its less than ideal position or replace it with an 'Edge Router Lite', if you want to keep all the kit consistent.