How long would it take to get to Cambridgeshire? there are 2 extra 200's one at bourn with Adrian Willis and one at Cambridge.
cost about £255 per hour which probably not a lot more than a bulldog.
As for managing energy, Adrian tends to fly at 2300/23" which teaches you what you need to know and in fact you can do the intermediate sequence at 2300/23" 2 up without horrendous height loss.
Don't be shy, lets face it Michael Pickin who probably the best young aerobatic Pilot in the UK was flying a cap 232 when studying for A levels!