Nimpo,
You will need TWO separate cables for the front. One is a straight "limit" cable, to prevent the ski from going past the point of no return, so to speak, if it were to go over center on you.
The second cable should at least have a "crust cutter" cable portion from the attach point on the front of the ski up maybe a foot. That is then attached to a bungee, then to another short piece of cable, then the tab. I see no reason you couldn't make your own tab. For the price Atlee sells them for, though....
Personally, I'd dump the bungees and replace with springs. No worries about exhaust or them ever wearing out, going soft, etc, or UV. Springs will still want a crust cutter cable, mostly for attachment ease, and same on top.
MTV