The head I use cost £230.
Try this tripod:
http://www.warehouseexpress.com/buy-...ripod/p1518585 I have one myself and use it with my 400mm F2.8 Nikon AIS lens plus D3, which weighs almost 8kg. It's rock solid and has a maxium height of 180cm so, should be ample height for what you want.
For a good compact ball head try this:
http://www.warehouseexpress.com/buy-...-head/p1033011 I also have one that almost the same model and it works a treat.