HF hull....with a freighter shield....the size of a cruiser...speed of an LF....
Oh god no please. Do you now how funny a cruiser sized ship flying around at 300m/s looks like? I've seen the DPC fly around in their weird "Nomad Weapons Platform" at VHF speed and the speed just makes it look damn weird. Now you're talking LF speed with 300m/s thrust?
Plus, not to mention that this thing will be easier to SNAC than a damn Spatial. An average bomber pilot can hit it. Making the entire ship itself a redundant class that nobody would fly.
Just...no....it's not a case of whether it's a good idea or having an open mind, it's a case of "this idea is ridiculous". Like telling somebody it's a good idea to mix marmite and coke and use it as pasta sauce. No it just doesn't work....
EDIT: Also, wrong section. This section is for completed ship submissions, not suggestions. Oh well....