Answers...
1) Here are a few Gryphon Hider addons:
Art Hider
KarlGustav's Gryphons Remover
Hide Art
Also there is one in Cosmos under Baroptions ... It can be used without Cosmos if you like but one of the three above would prolly be the best choice. The second link (KarlGustav's Gryphons Remover) has been updated for the latest version of WoW so it does work (hopefully)
2) The chat window can be moved anywhere you want without any need for an addon.
Heres How:
1) Hover over the chat window and right click the First tab. On the top there is an option for unlocking the chat frame. Click that.
2) Move the chat frame by Holding the Left Mouse Button on the first tab and dragging it anywhere you want.
3) Relock the window. Follow step 1 but instead click on Lock Chat frame
Also you can resize the chat frame the same way you would resize any window on your desktop. Holding the Left Mouse Button on an edge and dragging Left/Right or Up/Down.
Hopefully this helps. I use Cosmos so I am not positive if the Chat Unlock is a blizz feature or not but I believe it is.