I think davidw has referred you to the right place for this question but I want to address on point: "you only need to buy the parachutes ones (sic)". This isn

I think davidw has referred you to the right place for this question but I want to address on point: "you only need to buy the parachutes ones (sic)". This isn't strictly true. Typically you'd replace a nylon reserve parachute every 10 years irrespective of use or UV exposure. You'd also repack every 6 months - some people repack much more often. Also, having jumped from C-130s and DHC-4s I think the exit from a modern passenger jet aircraft would be very unpleasant, and without training, specialist equipment, and luck, not survivable.