I have been looking to replace my front tramp (or what's left of it) as well.
One company I found seems to supply several different websites, so I figured I'd go to the source. I'm concerned about many of the aftermarket tramps that are not "nets" and more like the main tramp. I can see a tight weave trampoline causing a pitchpole if the bow spreader buries itself in a wave. So on this site, I'm considering one of the mesh or net options.
https://www.multihullnets.com/Prices/Ne ... ber=H-GTWFAnother site I found doesn't make a Getaway tramp specifically, but a reasonably facsimile can be fabricated. If I go with this option (which is what I'm leaning toward for about $250), I will likely have them make it about an inch short all around and then use sail slugs (like on the front of the stock tramp) on the sides and rear to attach it. They already told me they can't make one with a 5/16" bolt rope on the sides and rear.
http://www.atninc.com/atn-multihull-net ... ment.shtml