[@Lonewolf685]
The main problem with going after Camelot is that she's this weird combination of almost bipolar in some ways, as described in her CS. Granted, I'm sure it'll be interesting to see the attempt, so I'll try and help you out, but Camelot will be a genuinely difficult target compared to the rest of the girls, probably as hard as Lumiere in her own way (though, this just might end up being more encouragement to go after her). Lumiere has experience, but Camelot had some of the most dogged and unrelenting paranoia around.

Gold:
You're right, her radiance is clear to see... too much so. She's at her core so self-sacrificing that she simply has no desire for gold. Even disregarding her paranoia, she just doesn't value it, not really. It doesn't help her, and it doesn't help her people. The closest you might be able to get is, yes, probably a coin from Camelot, but there are a couple problems with that: the first of which being that she'd likely near immediately sell it off, since money helps her people more. She's also something of a tomboy and doesn't value gold as jewelry and the like and would have no reason to keep it personally. She's just not greedy. In fact, it's easy to say that she is the opposite. She believes that she is so blessed that she has little right to recieve more than she has and will often insist wealth goes to others. The only way she's likely to keep it is if it has some kind of very practical use or is a source of knowledge; the gold part simply doesn't factor into her value of it at all... and in fact, in some ways makes her even less likely to take or retain it.

Paranoid:
While as Camelot and even in her civilian form, she can be quite amiable, most people would not for a second realize that she is one of the most paranoid magical girls alive under the surface. She considers being a magical girl to be very dangerous, and despite having pretty much literally no proof after a whole 2 years, she doesn't trust the Grand Ministry as far as she can throw them, which is to say, not far at all. She tolerates the arrangement because it is convenient, but she is a hardcore American at heart and doesn't trust anyone with the kind of power the Grand Ministry has while seemingly answering to no one. As an extension of this, her knowledge of the Grand Director's Merlin Grimoire has made her even more paranoid, as she has assumed (whether correct or not) that said person is a precognitive, which is all kinds of awful to Camelot's desire to choose her own destiny. Camelot's paranoia is absurdly touchy in regards to "things that seem too good to be true", so unless one is very careful about how they approach her, a combination of her paranoia and self-recriminating nature will likely make her reject spontaneous gifts or mysterious alliances as a matter of course. Though, to be fair, she is biased against the Ministry, so that could be an angle.

Honestly, one of the funnest parts about this might be the realization that Camelot [i]really is[/i] as genuinely and stubbornly a paragon of justice as she seems. She has her temptations, but the core of real goodness is often such a firm rejection of such temptations as Camelot engages in at nearly all times.