If you have handy carpentry skills, buy the kits that you can put together . Their cheaper and not hard to put together at all. Have Fasttrack guy solder your electronics together and you put it together and save a lot of money. Also you can purchase older kits and save even more. If your handy at soldering sensitive electronics , your could save even more money. Even I have built 2 of them in the last couple years, so it must be easy !!!!....SPIRIT.....Buy the way the first one didn't go bad, I built the second one for a friend.