Help With My First Kit.

[Flavivs Aetivs]

I was taught to obtain my gear in the following order:

1. Tunica (In your case probably braccae as well)
2. Caligae (In your case boots)
3. Balteus (In your case a Clipaeus)
4. Cloak
5. Subarmalis (It's usually cheaper to make your own.)

After that would be a shield/Metal Armor and Weapons.

Armamentaria carries boots but I think they're 3rd century.

Medievaldesign has a whole 4th/5th century soft kit you can buy all at once. I think you can buy it 1 piece at a time. They have really high-quality stuff.