Thank you all. Ok well i have a made a descision yay!

I think i will just get a single bed for DS and try it and see what happens in the next month or so. Hopefully it will all go well and if it doesnt - no biggie - we can always try again later. Little one can just use the port-a-cot and the bassinette until the big boy loves his new bed

I even sealed the deal by buying some single bed manchester on sale today so i cant back out and get anther cot cause i cant afford it now

Thank you all, its great to hear about your experiences.