Hi
Take advantage of the 14 day distance selling regulations, and give a reputable OEM of powerline adapter another try (if they dont work you can send them back), i persevered with WiFi for far too long whereas the powerline adapters (i have tried three different makes) just work. Not ideal for streaming uncompressed HD, but i get a good 10 MB/s (megabytes) from them in my rewired Victorian house.
Speaking from experience, wiring a house with network cable is no small undertaking.
BTBroadbandInfinity 2, sync'd at 80 down 20 up, BT Hume Hub 3, Cat6 wired home, Core 2 Duo E6850 3 GHz, Gigabyte GA-EP45-DS5, 8 GB, 10 HDD=3.3TB
