N64 PAL colour console price checks please

So I bought my first colour n64 boxed console
the blue with clear white bottom and I want to try and collect all the pal versions boxed.
so I'm selling stuff to but stuff.
i see it as swapping instead of spending my own money.
anyways is there a set rough price for each?
i will only buy good nick boxed consoles .
i have been told the orange and water melon or the harder to come buy , what is a good guide price to spend on these?
i was thinking for these about £80.00 each and then the likes of the green and others about £50/£60
also would not having instructions and poly bags deduct from the price much?

 

Yes, that's probably about right. They used to be around £20-40 not that long ago, too! Sometimes they can go for a bit more than you stated, but I'd expect them to have EVERYTHING for those prices. Yes, not being complete will affect your chances of getting top prices (back when it was £20-40, that would be £20 for a tatty boxed but missing bits example, and £40 for a pristine complete set).