The first ebay link is •Size : Length - 76.5cm, Width - 46.5cm, Height - 83cm
the second one • The table size is L90cm * W60cm * H75cm
As I'm quite tall I wouldn't go for the second one (it would be too small for us). Also in my experience, Charlie would be squirming all over if we had the bigger sized one.
The one we have (1st ebay link) - is nice and sturdy (we've used a couple of other tables at ringcraft one one of them wobbles all over - this one is lovely and solid and sturdy).
I paid £50 for mine (including £14 p&p). I couldn't find a cheaper one at the time.