Wow! You have a lot of ideas! You can get free items, that still work, from Freecycle (google it!) I have a friend who got a cold frame, so you may be just as lucky!

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Hi! Please look at my 'brilliant' site about dolls houses and miniatures! I can always use new members, not matter how much you visit or not! Also, the more members I get the more things I can put on, so go on, do me a favor and at least look!
http://dollshousebeginner.page.tl/