Fuel Problem, Took Duster for a Shake-down Cruise

Alrighty then..
Little update and a question... First off the fuel filter was plugged with rust and anything else you can find in a tank.. So I have the new tank and I dropped the old tank.. I found the reason why my sending unit never worked since I've owned the car.. Pictures show just a tad bit of the reason..
Is that sad or what? No sock, and no float (that I haven't found yet).My question is this, I have put the new tank sending unit in the new tank and I used the old seal and added the new one as well. I've heard some horror stories here on leaks and frustrations when one seal just won't work, so that's why I used two. .. But now my question is..... Have I seated the lock ring far enough? It"s like it only goes just a small way then stops. I hope the picture shows you what I mean.. (picture 3) Can anyone verify if that's as far as it needs to go, or do I have another 1/4 or so turn to go... Any comments are welcome...

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