I'm planning to assemble x86-based computer equipment and place it outdoors, on the balcony, which has no protection from the elements, except for the concrete floor and roof. The temperatures here go approx. from -30C to +30C (-20F to +90F), with abundant snow and rain at times, and also direct sunlight.
The computer equipment needs power (230V AC), and at least ethernet connection (cat6 or similar). VGA and USB would be nice, but are needed only for random debugging. The system generates heat, which needs to transfered away.
What kind of weather proof enclosures would be suitable for this project? This far I've gathered from Wikipedia IP Code tables that IP67 or NEMA 4 / 4X would probaby be sufficient, but is that overkill? Typical 19" rack enclosure at approx 4U size would be pretty good, but non-standard similar sizes are OK as well. I failed to find any price information online, how much should I budget for this? I've never built anything like this, should I plan to purchase a piece or is it easy to do it myself?
(I realise this might not be the right forum for this question. Feel free to suggest a better suited forum or move my question.)