Hi Missyrolph and welcome to GoY. Have you considered using the free ads to advertise for a second hand one and/or checking to see if anyone is selling one off second hand?
As to protecting your flowers I assume these are in pots but your average garden shed is not going to keep them frost free.

Thank you Moon grower. I love this site already! I will take your advice about the free ads. I thought too about gumtree and freecycle.
Yes the large majority are in pots. I have busy lizzie, french marigolds, original dahlias, lavender and young hydrangea. Can you advise me on frost protection tips? This is my second season as a gardener and I'd hate to lose chances on regrowth. In my kitchen garden which is a 4ft by 10ft wooden structure I have strawberries, tomatoes, lettuce, rosemary, basil, mint, oregano, thyme and chives. How might I protect those?

Okay busy lizzies are usually grown as an annual whilst french marigolds are an annual and need sowing every year. Your lavender and hydrangea will be fine outside, you could protect them with fleece of bubble wrap if you get a prolonged heavy frost. You'll need to un-pot and store you dahlia tubers in dry sawdust or similar and then replant in spring. If you need more info on how to do this go to the bottom of the page click on 'D' and then on dahlias.

As to your veg. the strawberries will be fine in the ground. Once you have harvested al your tomatoes remove the plants and put in your brown, for green stuff, wheelie bin. The lettuce wont survive the winter you'll need to sow again in spring - have you tried salad leaves instead of lettuce I find them better, though they wont survive outside over winter either. Rosemary will be fine as will mint, oregano, chives and thyme, basil will need resowing in spring unless you can bring the pot into the house and place on a sunny window sill.

Thank you SO much Moon grower. I'm learning a lot from your blog too. Very interesting. I also want to buy a composter soon. I have a singing student who has offered to build me one out of old palettes. Thank you again for your advice :)

You might want to check to see if your council is offering free or very heap composting bins - glad to be of help.