Hey, you're playing a non-gold game right? so who is at the top of the turn ladder? 'Cause if it isn't a gold game, then Warp Point camping isn't going to do you any good:
If he is higher in the game turn order, then when he comes through the warp point, he will get first shot on you = you die (sorry, nice knowning you
)
If you are higher on the game turn ladder, then when you go through the warp point you will get first shot.
Then the only advantage to letting him come to you is that he'll run into your mines. conversely the only thing holding you back from attacking him is that you'll need to build a bunch of minesweepers.
hope that clairifies things. I just think it would be a shame for you to build up and camp on your side of the warp point only to have him come through and get the first shot... better you sit back one space from the warp point, let him come through and then engage him in combat. Besides, if you back away you may be able to coax him into your minefield before he has sufficient minesweepers ready