Just a word to the wise, but also account for the fact that it is EXTREMELY awkward.
I did a 700r4, but it ended up requiring me to use a ratchet strap to hold up the tail. That one only weighed about 100 or 120. I'm 185 and bench about 260, but the awkwardness killed me.
I would highly recommend investing in a transmission jack from harbor freight. They're under 100 bucks, and it'll turn out to be well worth it.