New guts as far as fan motor assembly, filter, lighting control, fan speed and lightbulb socket? Yes this is very possbile. To get exact replacement parts may be difficault however there are after market parts that can be used in place of OEM parts. You just have to know what yo are looking for. First step would be to disassemble the unit and take an inventory of the parts you want to replace. Figure out by the labels what they are and you should be able to replace every part in the unit. Good luck.