see if you can rent some rack time. doing it on your back sucks the proverbial hairy moose ****.
get the car up as high as you can. clean everything really well before hand-- engine degreaser, pressure wash, etc. and buy an extra set of plugs in case you bungle any on your first try.
i honestly don't know. i just used what was there and it worked, so you'll probably be fine. if not, you'll burn that bridge when you get there.