If you're not planning on fighting as a Roman in ranks, there are quite a few inexpensive good modern swords. I am certain that these swords, if available 1,000 years ago, would sell for the equivalent of what a good DSA FAL does today.
Hanwei Dark Sentinel. Not at all historical, but a long but light sword that cuts well. And ridiculously cheap.
The
Hanswei Tactical Wakizashi is about the largest reasonable size for a modern sword- or that one would want indoors- and you can have one for just over $100.
The
Hanwei Banshee Cutting Sword doesn't have the Kraton grip of the previous sword, but is a sturdy, effective little sword for $140.
Slightly more expensive, you could get a
Cheness Ko Katana for less than $230.
If you want a short sword made by arguably the best semi-custom group of knifemakers in the US (Busse- Busse, Swamp Rat, and Scrap Yard)- you could get a
Swamp Rat Waki with a sheath for a bit over $500.
In my mind, this would be the direct equivalent- if available 1,000 years ago- of buying a top of the line DSA or Knight's Armament rifle today. Since we're not paying $2000 or more for that Swamp Rat Waki, the relative price has gone down a lot.
John