The opening is almost straight in front of the jumpgate. Line yourself up with that, and you can't miss it. You may have to adjust your course a little, but you can't miss it.
Downloading one of the jumpgate mods(there are at least two which allow access to story-only systems like Alaska) will allow you to enter. There's not much to see though.
And the old fashion way of navigating is fun. Waypoints are for the directionally challenged.
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Reaper: $200,000,000.
Rockets: $100,000
The look on that pilot's face when you launch a full pod of screamers up his tailpipe: priceless
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You're not just beating the dead horse, you're cutting down trees to do it with!