Turns out it was actually just 3 modspecs and not a preposterous number.
The build is the following:4 railguns,4HDVs, 4 LR PDs, 6 PDs, 60 capacitors, 60 vents, ITU, Hardened Shields, Stabilized Shields.
A player piloted version with no liutenant on It can kite forever with the shield up and give a slow, inevitable spanking to Tach Lance Paragons and Redacted which are the only two that can actually match your ranged pressure but not in the hard flux category. Everything else tries, fails and gets its face punched in eith little to no resistance provided you've got the patience.
Stabilized Shields may sound like a pointless mod until you realize the Conquest has 480 shield flux per second, you can cut that in half with 15 OP and that's worth 24 vents.
The AI is of course atrocious at piloting it, but that's the standard Conquest experience.