Few UA questions (govt. job)

I posted this on another similar forum but figured I'd post it here as well to get as much input as possible. Thanks, in advance.

I had a job interview a few weeks ago with the county I live in for a very good position there. I feel pretty confident I will be offered the position as I was recommended for the job by the County Executive. Naturally, I stopped smoking as soon as I found out about the opportunity. I'm 32 y.o, 5'10", 175lbs, normal metabolism and don't exercise nearly as much as I should. The last time I smoked was Dec. 10th (26 days ago). Prior to that, while I did smoke pretty much daily for a year or two (typically high grade bud), I usually smoked very small amounts (1/8th lasted around a month on average). I ordered a 5 pack of THC strip tests from Amazon. I tested myself a few days ago and you could barely (and I mean barely) see a faint line which would mean negative. It was so faint that you almost had to hold the strip at an angle to make out the line. I know I've read that any line, no matter how faint, is good news, but I still don't feel confident that I passed. I do have a bottle of Quick Fix, which I've practiced several times at getting the temp to acceptable range, but I'm afraid there's a chance I could be observed since it's a govt. position. If it's just monitored, I'm pretty sure I could still manage to sub, but obviously that wouldn't work under direct obs. My backup plan is to follow N2's dilution method. I have all the items I need for that except for the creatine.

Few questions I have:
1- Based on my size and very small amounts I was consuming, shouldn't I be pretty close to being naturally clean? I know everyone is different, but I was curious to hear from others with a similar build.
2- Is a (very very very) faint line considered negative? The Control line was extremely solid and visible but I was still nervous because of how faint the Test line was.
3- Has anyone who has applied to any state/county govt job been either monitored or observed? I've read that employers cannot use direct obs for pre-employment unless given a reason to do so, but I never got a clear answer on Govt. positions.
4- Is eating fast food hamburgers for a few days in a row prior to test enough to keep creatine (creatnine) levels in acceptable range or would I have to get a supplement?

Thanks very much. Any help/input truly is sincerely appreciated.