Gardenworld's Collectors Corner book section has about 3 copies of both
Vol 1. and 2. in the hardback version, last time I was there.  If you're
really desperate for a copy, I can supply their address - I'm sure that
they could mail a copy.
BFN
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|    John Taylor  [Catweasel]    |   Royal Melbourne Institute of Technology  |
|   rphjt@minyos.xx.rmit.oz.au   |        Department of Applied Physics       |
|                                |        Melbourne, Victoria, AUSTRALIA      |
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