All pokemon mentioned thus are quad flawless:
Looking for the following:
Gligar spitback with immunity (either gender)
**priority** Female Larvitar spitback, any (useful) nature, with Stealth Rock and Pursuit
Goomy spitback (cool poke ball)
I can offer spitbacks of the following:
Adamant Scyther (Baton Pass)
Adamant Venipede (Net Ball, Speed Boost, Spikes, Toxic Spikes)
Timid Joltik (Quick Ball, Disable)
Jolly Magikarp (Dive Ball)
Gastly (Dusk Ball, Disable)
Honedge (Dusk Ball)
Noibat (Quick Ball)
Fletchling (Repeat Ball, Gale Wings)
Azumarill (Dive Ball, Huge Power, Aqua Jet, Belly Drum)
Mawile (Ultra Ball, Intimidate, Fire Fang, Seismic Toss)
Chansey (Heal Ball, Bold, Seismic Toss, Aromatherapy)
Ralts (Nest Ball, Timid, Trace, Disable, Destiny Bond, Memento, Mean Look)
Skarmory (Impish or Careful, Drill Peck, Brave Bird, Whirlwind)
Corphish (Dive Ball, Adamant or Jolly, Aqua Jet, Knock Off, Dragon Dance)
Absol (Premier Ball, Justified, Naïve, Baton Pass, Play Rough, Faint Attack)