Double pushchair help please ?

[lalalauren]

Hi just wondering if anyone has any ideas or advice :)
I am expecting baby no 2 in September and my son will be 27 months but he is currently not walking (but that is another story) so buggy board/making him walk is not a option.
I really am set on a side by side if possible.
I currently have a Baby Jogger City Mini single and thought the double would be perfect as I love the single. But have now found out that you cannot attach a car seat to the double, I think this is a must for us as we live in quite a small village and often have to pop out to places in the car.
I then thought the Bugaboo donkey was the answer to our problems (even though they cost a fortune)
I've now measured the front door and think this presents a new problem :( it is a standard door width but the door only opens 90degrees so i don't know if the door its self would get in the way when trying to get the donkey in the house I have tried to imagine it but its so hard to tell without actually having one to try out.
I am thinking now my only option is the mountain buggy duet but keep thinking the seats look tiny, my son is quite small for his age so may not be a problem now but we have no idea when he will be walking and want it to last.
Does anyone have any experience of putting a bigger child in the mountain buggy?
I haven't found many reviews of it in general so would appreciate any opinions about them, also do they resell quite easily and for what sort of price?
Also haven't completely ruled out the Donkey, how easy is it to covert from double to single? Is it possible to do this with one child still in the pushchair?
Or anyone know of any other pushchairs I could consider?
Sorry I have gone on so much, I really want to buy the right one first time!

I have a Britax B-Agile double, and it has a car seat/carrycot option on one side. As far as the door width thing goes, it doesn't actually fit through my front door, so I just have to open the door, set it up and then get the kids in. It's really easy to set up and literally takes seconds, so it's not that bad! HTH x

My friends both have a Out 'n' About Nipper V3 Double, and they love it. It's why I am interested in trying out the sport version.

I just saw your post & I hope you got sorted out. I had a twin Maclaren for my kiddies and it was great. Sometimes all 4 got in it if the two older ones got tired! It was so easy to use. Maclaren do a carrycot now which fits on a lie down seat. It does fit on a twin even though they say it doesn't. Just a bit squashed at the sides but much cheaper than a whole new buggy. You can also use reins & when the eldest is walking put shopping in the spare seat & hook the reins through the frame of the buggy then the older one can't run off. Also works well when the last one is asthmatic & you need to carry a nebuliser around with you & chld is six. Still fitted in the seat. Maclaren are just the best pushchairs for multiple children. Mountain buggies are good too but take up masses more space in the boot of a car.