Off-topic:
Alex, you do need to combine all your posts into proper articles on this forum. Things like 'Understanding Nebulae' and 'Observing the Moon & Planets' deserve to be as articles with proper formatting.
On-topic:
I wish all these great second-hand EP were available on the market. On CN classified you can find gems from time to time, but quite often they are not sending overseas. Or even not accepting PayPal - money order or cheque only!!!
Hey, it's 21st century now! So it will take quite a bit of time to find what you need here in Australia. Or might not find here at all.