I built a 6'x8 laminating table from white furniture board panels from the local DIY store, and a simple rack to hold the rolls.
For a project of this size, I thought it would be worth buying a new vacuum pump, although it was pretty expensive. It is one of the models sold by West System/ Wessex resins. (Actually made by Becker , Model VT 4.8 -and I am sure you could get it cheaper from another source!)
It pulls a vacuum of 25.5Hg/150mbar, which is not terribly strong, but it does however have a high capacity. (i.e it can shift a lot of air quickly) This means that if there is a leak in the vacuum bag ( which there often is), the pump still has some chance of pulling a half decent vacuum. So far even with some badly leaky bags I have never had less than about 24.5Hg, which is plenty strong enough to give a good laminate.
Many pumps with very high vacuums have low capacity and can be overwhelmed by leaks. I bought 2 hoses and 2 breach units, as there are 2 inlets on the pump. With the non return valves on the breach units you can do 2 bags simultaneously, adding the second later on than the first..
As working with fibreglass was new for me, I initially started off vacuum bagging the smaller bulkheads and panels individually. This is rather a slow way to do it though, and as I got more proficient, I was able to cram as many parts as possible onto onto the laminating table. The secret is preparation, you really need everything cut to size and at hand -then there is no panic to get it together before the resin gells.