WTB a Respark Shield (low ego)

I've been playing my new character for only a week now and it might seem too soon to ask if anyone on here has a low EGO (400 - 500, I'll prolly be 500 tomorrow since I have tomorrow night off from work), but I have a friend who's going to start playing this weekend and I want to save some of even lower ego weapons and shields for her, which is what my current shield is.

I've tried asking in-game and only one person responded saying they had just sold all their shields, lol. I know Respark shields are the more popular choice amongst most players and I'm no different. I've also tried looting during sieges and arkfalls, but always seem to get white/green Ironclad or Taychon (sp/w?) shields. I think I sold roughly 20 of them already. So I'm trying my luck here.

I feel like I'm being picky, but on the other hand, I don't think I'm asking for much. I mostly want this shield so I can at least give the shotgun hotshots a try without dying the moment my current shields capacity and armor is broken. I don't really like shotguns and planned to practice with them later because of some advice another player has given me.

Basically, I'm looking for a 400-500 EGO Respark Shield that has at least 2 armor plates and blue.

If someone has anything better willing to give up, then obviously I am okay with that. Like a Respark Regenerator with more armor plates, purple/orange (though I highly doubt I will see an orange anything any time soon, lol), one of them DX or ARKs... those would be awesome, but like I said even a blue with at least two plates of armor would be fine for me.

By any chance do you get a Respark Shield in the Madera or Marin main storyline?