Looking to purchase a set of these but I have some concerns, 1st is that its 40 years old and still works but for how long. 2 is i cant seem to find what it looks like without driving an hour to see it. It comes with 4 heads and the power pack, 3 is can I still find accessories for these lights, ex modifiers etc.... 4th is are they worth the price for $100 bucks. Thanks ahead of time for replies.

