I am currently looking to buy a large format camera, being a student I have limited funds looking to spend around the £500-600 mark including preferably 210mm lens. I am stuck weather to buy a monorail set up or a fold-able model like the crown Graflex. I am planning primarily to do a series of portrait shoots for a university project hence the need for a 210mm lens, however my personal photography involves much urban exploration so preferably I need something which isn't too heavy.

Any advice or recommendation would be most appreciated.
Cheers.