Well, I'm in bronze, but I don't belong there. I ended up there back when I first started playing a year ago, went on a 19 game losing streak and now I can't get out of b4. So take all this with whatever grain of salt you need to.
I can play any position but ADC. I can also play any champ you want, I just need 10 or 20 games to learn them. I have 26k IP so getting them isn't an issue. Supp is probably where I'm most dominate.
Top: Garen, Tryn, Jax
Mid: Annie, Veigar, learning ahri and lb right now
JG: Panth, WW, Rammus, Voli, Tryn
Supp: Morg, Lux, Annie, trying to see if veigar is viable.
These are just the champs I've been playing regularly in the past month or so. I play maybe 2-10 hours a day, usually around the times you're looking for. Hit me up and I'll do some tryout games if you're interested.