Ahh, memories. I did the same thing, at about the same age. The most expensive item is the enlarger, with lens. Second-hand enlargers can be very cheap. I came across one last year for #15 (UK pounds, about $25), including an easel, trays and so on.(posted 9151 days ago)There are articles on creating your own darkroom in B&W World, the 'owner' of this forum.