We too were going to buy new but I think the sales guy thought we were struggling as I run an allotment site and one time went straight to the showroom to collect a brochure. He told us to buy one with delivery milage if we didn't want any optional extras.
So we paid £15,000 it was £15,750 when I drove it on test drive it had 5 miles on the clock when it was finally ours it had 33 miles. No ours was active so no special extras but we kind of thought at £15000 we were more than pleased.
Pulling the seats down, (OH is on business trip so might get back to you on this) but no you don't need to move the middle row, of course if you've moved the middle seats back to create more leg room for the 2nd row I guess you would.
Insurance was actually the same, well £9.53 cheaper actually. I'm sure my OH said the Tax was now £110 but I might be wrong on that.
The galaxy sure does come with a lot but the increase in insurance,tax and fuel put me off plus it was all about space for me and the galaxy couldn't offer me any more than 5008.
My children like sitting in the back seats. So far we've had
3rd row 10yo and 7yo (booster seat)
2nd row stage 2 seat, booster, outside seat folded
3rd row seats Grandad + 10yo
2nd row seats 7yo,3yo(stage 2 seat) +grandma
2nd row all three children
3rd row folded
2d row stage 2 car seat + booster seat centre seat folded
3rd row 10yo + Grandad
hope this helps.
Also even with all seats up I have actually done a tesco shop and I got 9 bags in the back. I guess I could of piled it higher. We as yet haven't need to fill to the max so haven't put the boot space under any pressure. Also haven't checked my Jane 3 wheeler but my lightweight stroller can fit in the boot with all seats up.
I'm sure you'll be happy with the 5008 I've spoken to a few people who've been happy with them and my OH boss was impressed with ours on a busissness trip that he's just got one. Of all the reviews I've only come across one bad one. The sales guys in our dealership were really nice and helpful where as some showrooms had some slimy types. The ford dealership for me made the least impression they couldn't even give me a brochure just told me it was online.
Hope all the above helps