Yeah, I’ll have to seriously rethink this too.
It’s more than “15 minutes work” on my car. On top of that, running water with no glycol in the Z32 is not recommended as it can damage the water pump (insufficient lubrication).
There’s a good chance I can’t make the first event on the June weekend anyways as my car will likely be apart over that time period, but there’s still time for me to think about the August one.