Possible trip to Hethel?

Hi All,
It looks like I will have the opportunity for a trip to Hethel on a Monday in February, as part of a layover on a vacation trip elsewhere.
Unfortunately it appears that factory tours are only on Wednesdays and the driving school season doesn't begin until March.
My questions are:

• Is a one day trip to Hethel worthwhile, under these circumstances?
• Are there any Lotus related activities to do (given no tour and no driving school)?
• Is there anyone I should contact in the UK (other than Lisa and Annette) for additional info?
• Does the factory have a plethora of elises of varying colours available for view? e.g. OEW?

Any info is appreciated,
Larry