I won't argue jointer versus joiner plane - I use them both - but I just wanted to say and ask:
1. Lola Ranch - that is a very nice trestle table am i reading your post right - that is fir? Like in the same stuff they make the 2x12s at the Borg?
2. Everyone is talking about jointing the edges, haven't seen anything about biscuits, splines, or butterflies - are these considered superfluous in a table that thick, because it's got so much glue surface?
3. The OP mentioned clamping issues - pipe clamps may be the cheapest way to go if you've already got the clamps, just go buy some longer pipe.
4. Does anyone advocate the use of a slight concavity when jointing the edges for gluing - so that when clamping the boards the ends close up first, and then the middle, therefore (supposedly) preventing the ends from opening up down the road?
Insert witty signature line here.