I was planning on making a computer into a very small case, and have run into a problem. The only way to have a motherboard fit correctly would be to have an external power supply. I've checked out Newegg, and their only external PSU is nearly $200.
Would it be unsafe to buy an internal PSU and just use it outside the case? Do they sell extension cables that would reach the internal parts from a slight distance away?
It's an old Mac computer (Centris 610) that I was planning on gutting and installing new hardware in. The case is only about three inches high, and would not hold an ATX or microATX motherboard with most power supplies.