2013 09 25 07.50.13 in Member's Album 2 Posted December 8, 2015 Great project. Would be good to see a pic of fully commissioned observatory. Hi Phil, I've moved house now so sadly said good bye to this obs in March of this year and yet to build it's successor! However, lots more photos in my build thread - http://stargazerslounge.com/topic/192304-snakeyjs-obsy-build-thread The yardmaster shed performed quite well as a roll off observatory, but required substantial timber framing to make it solid and support the roof. It had a few minor leaks and was not easy to seal up to run controlled humidity, but at £450 all in would be very reasonable for this cost.