Did not mean to make you feel bad, but I think you could find a much better "Old Mac", or old "any computer" for $66.75 U.S., or 40£ (or is that £40).
If you COULD get your money back, I am sure you could find a much better old Mac to play with, but if you can't, well then enjoy what you are getting.
I understand the enjoyment of messing around with old Mac programs and the OS itself. I used to spend hours on my A2000 w/030 and 386sx Bridgeboard running MS-DOS6.22, MacOS7.5.5 and AmigaDOS3.1 all at the same time.