Understandable about the nature, Lonely actually kind of sucks as a nature anyhow. Adamant is where its at for a physical attacker anyway.
To answer your other inquiry, I have an extensive list of SPA Pokemon with a few ITA thrown in the mix. If you're interested, I am willing to offer any or all of them for trade:
ITA: Vullaby, Snorunt, Gastly, Pikipek
SPA: Squirtle, Grubbin (x2), Rowlet (x3) , Igglybuff, Finneon, Bewear, Klinklang, Granbull, Eevee, Cutiefly, Absol, Petilil, Mudbray, Yungoos, Ekans, Comfey.
If you need specifics on a particular one, let me know and I'll get it to you. But they're all fair game of you want to trade for any.