You never specified it had to be 1v1, just same cost or less... so here you go.
![image https://i.imgur.com/o1Wnypn.jpg](https://i.imgur.com/o1Wnypn.jpg)
I did also beat it with a single ship (that costs 1 mil less), but it uses big ship mods. Vanilla otherwise. No proof of victory pic but if you doubt me just load in my ship and see for yourself.
![image https://i.imgur.com/KBKBRLh.png](https://i.imgur.com/KBKBRLh.png)