Many thanks once again for all you valuable help and advice guys, certainly some more food for thought.
Just been costing up the Ricoh vs Epson and basically the Ricoh is going to cost about £1150 with large ink carts and the bypass tray for A3+ and the Epson comes in at about £670 ready for A3+; so I think I'll probably end up getting the Epson, in the long run the actual cost of the Epson printer is only £220 so if down the road I really struggle with it then I can make sure I finish the ink off and part company with it without taking a big financial hit. And if I start gripeing on here about bloody Epson you can always say "told you so!"
EDIT - I've just found I can do the Epson for £480 with the CIS and inks.