Shaun,
The Lavant corner grandstand gives you a good view of the 'far side' of the circuit and the start of the very fast Lavant straight. Most of the action- the pits, the paddock , chicane, the start/ finish and the 'Expo' are about a mile away, although they do run tractor busses so you don't have to walk.
If you are like me, you'll probably end up just wandering about, talking to people and looking at amazing cars for moist of the day. You can see the track quite easily from most points on the circuit without being in a grandstand. If you are coming for the whole weekend and are really into the racing, I would suggest buying a ticket for the Woodcote or Chicane grandstands for Sat or Sun- these give you fantastic views of the racing. You can book online at
www.goodwood.co.uk. Also, be aware that almost everyone dresses up in vintage clothing, and the place has an amazing party atmosphere. Personally, I prefer it to the FoS.
As far as a single seater course goes, have you tried Thruxton or Castle Combe? These are circuits which run such courses. Castle Combe is about 1 1.2 hours drive, Thruxton slightly closer. Brands Hatch may also be worth trying (again about 1 1/2 hrs drive). Goodwood (Mithril Racing) do offer single seater courses but I think they close down about 2 weeks before the Revival. You could try them on 00441243 771522. Public transport from here is pretty awful- you generally have to go via London which can be a painful and lengthy business. I would suggest hiring a car is probably the easiest option.
Anyway, let me know where your accommodation is, and I'll give you the lowdown!
John