I don't think the Native items will help you much,in my opinion.Romans are very distinctive,or shall i simply say "Roman"?,anything less than true,made-for-that-reason Roman items may just make your troops look pretty wretched compared to some of the other Rome mods.You have chosen a hard path,with a lot of strong competitors,and i mean no offence,but unless you want to be a ten-download-laughingstock,you will have to whip up something really good at some point.
If i had more skill,i would be truly honored to help you,but i'm afraid the best i can get you right now is the hope of the release of my anim mod,and don't hold your breath waiting for that.