I managed to make 1 type of Raven hirable by removing the !bxxx's from the acceptance fields. I am sure this is not the right way to make it hirable, as the Ravens I hire have neither shield data or text saying they are escorts. Woe is me. :frown:
As for the Polaris ship hierarchy, here they are: (exculding Rebel dragons)
If there are no bXXXX, for the availabilty fields, assume it is b9999.
Manta-
ID-314 Upgrade to ID 161 (Kemi)
ID-161 (b279 | b316) Upgradable to ID 315 (Standard)
ID 315 (Nil'kimas)
Striker-
ID 318 Upgrade to ID 163 (kemi)
ID 163 (b279 | b316) & !b1304 Appear on: !b1304 Upgrade to ID 317 (Standard)
ID 317 Appear on !b1304 (Nil'kimas)
ID 262 (b279 & b1304) & !b324 Appear on: b1304 & !b324 Upgrade to 322 (Cloak)
ID 322 Appear on: b1304 & !b324 (Nil'kimas)
ID 271 (b279 | b316) & b324 Appear on: b324 Upgrade to 329 (Cloaking+fast jump)
ID 329 Appear on: b324 (Nil'kimas)
Zephyr-
ID 186 Appear on: b318 & !b1301 (Standard)
ID 256 b319 Appear on: b319 & !b1301 (Cloaking)
ID 257 b1301 & !b1302 Appear on: (b1301 & !b1302) | b1306 (Cloaking)
ID 258 b1302 & !b323 Appear on: (b1302 | b1307) & !b323 (Cloaking)
ID 266 b323 Appear on: b323 (Cloaking+fast jump)
ID 356 Appear on: b318 & !b1301 (Standard)
ID 357 Appear on: b319 (Standard)
Apparently, no Zephyr is upgradeable, I could not find any ship upgradable to or from the various versions.
Arachnid-
ID 158 (b298 & P30) & !b1303 Appear on: !b1303 Upgrade to 311 (Standard)
ID 311 Appear on: !b1303 (Nil'kimas)
ID 259 (b298 & b1303) & !b324 Appear on: (b1303 | b1309) & !b324 Upgrade to 319 (Cloak)
ID 319 Appear on: (b1303 | b1309) & !b324 (Cloak, Nil'kimas)
ID 269 b298 & b324 Appear on: b324 Upgrade to 326 (Cloak+fast jump)
ID 326 Appear on: b324 (Cloak+fast jump, Nil'kimas)
Scarab-
ID 162 (b298 & P30) & !b1302 Appear on: !b1302 Upgrade to 316 (Standard)
ID 316 Appear on: !b1302 (Nil'kimas
ID 261 (b298 & b1302) & !b323 Appear on: b1302 | b1308) & !b323 Upgrade to 321 (Cloak)
ID 321 Appear on: (b1302 | b1308) & !b323 (Cloak, Nil'kimas)
ID 270 b298 & b323 Appear on: b323 Upgrade to 328 (Cloak+fast jump)
ID 328 Appear on: b323 (Cloak+fast jump, Nil'kimas)
Dragon-
ID 312 Upgrade to 159 (kemi)
ID 159 !(b424 | b1305) & (b217 | b316) Appear on: !b1305 Upgrade to 313 (Standard)
ID 313 Appear on !b1305 (Nil'kimas)
ID 260 b1305 & !b324 Appear on: The same Upgrade to 320 (Cloak)
ID 320 Appear on: b1305 & !b324 (Cloak, Nil'kimas)
ID 269 (b217 | b316) & b324 Appear on: b324 Upgrade to 327 (Cloak+fast jump)
ID 327 Appear on: b324 (Cloak+fast jump, Nil'kimas)
Sprite-
ID 182 !(b424 & b324) Appear on: !b324 (Standard)
ID 273 b324 Appear on: b324 (fast jump)
ID 394 !(b424 & b324) Appear on: !b324 (Standard)
Cambrian-
ID 160 !b424 & !b324 Appear on: !b324 (Standard)
ID 268 b324 Appear on: b324 (fast jump)
Raven-
ID 164 (b305 & b1100) & (P30 & !b1302) Appear on: b296 & !b1302 Upgrade to 310 (Standard)
ID 310 Appear on: b296 & !b1302 (Nil'kimas)
ID 263 (b305 & b1100) & (b1302 & !b323) Appear on: (b296 & b1302) & !b323 Upgrade to 323 (Cloak)
ID 323 Appear on: (b296 & b1302) & !b323 (Cloak, Nil'kimas)
ID 264 Appear on: b1306 & !b1307 Upgrade to 324 (Standard)
ID 324 Appear on: b1306 & !b1307 (Nil'kimas)
ID 265 Appear on b1307 Upgrade to 325 (Cloak)
ID 325 Appear on b1307 (Cloak, Nil'kimas)
ID 272 (b305 & b1100) & b323 Appear on: b323 Upgrade to 330 (Cloak+fast jump)
ID 330 Appear on: b323 (Cloak+fast jump, Nil'kimas)
Well, thats it. (Damn those invalid rectangle errors)