There are several Jupiter radiotelescope plans available on the web. American ones usually end up using american components which are more difficult to source in Europe, but, I have come across a version of NASA's public outreach Jupiter radiotelescope, the JOVE project, in September's 2010 Everyday Practical Electronics Magazine and its design has been made simpler and with European components - (Australian ones too... let's see how that goes).
You can find an extract of that magazine, with the related article, on this project files section. link: https://cdn.hackaday.io/files/11916509814144/epe_jupiter_radiotelescope.pdf
For our american readers, i'll leave the webpage address of Nasa's outreach decametric radiotelescope project: http://radiojove.gsfc.nasa.gov/
I'll be sourcing components and posting them on the project's BOM.