This home is a bank owned property so there no really good records of the ages of the mechanicals or the roof. The bank will not disclose or even know this information. The best thing to do is go to the township of Star Prairie and ask for the property file. If the previous owner pulled proper permits for those items then they should be recorded there. It is free to look but they will probably charge you for copies of the information. If they have no records of the improvements then I would suggest hiring a really good inspector or individual contractors that know what to look for.