Couldn't find Spider-Man's stats, but in the basic rules, just use the ones on this site, only push his Intuition back up to Amazing level. His spider-sense is ranked at Amazing. If something happens which surprises the heroes, Spider-Man is allowed (before he rolls) to spend Karma to allow him to auto-react if he wants. Otherwise, he could just roll and hope he reacts in time. Like both Caps, Spider-Man's identity is secret, which makes it easier or harder for him in Campaign mode depending on situation. Peter Parker is a freelance photographer, which means his Resources is at Poor rank, if I remember.
As for stats I do have...
THE THING
Real name: Benjamin J. Grimm (Public Identity)
Profession: Adventurer
Fighting: INCREDIBLE (40)
Agility: GOOD (10)
Strength: MONSTROUS (75)
Endurance: MONSTROUS (75)
Reason: GOOD (10)
Intuition: GOOD (10)
Psyche: REMARKABLE (30)
Health: 200
Karma: 50
Popularity: 80
Resources: REMARKABLE 30/1000
Powers
THICK SKIN/BODY ARMOR. Ben's orange rocky hide serves as Incredible (40) Body Armor against all physical attacks.
Talents
Ben is a pilot. He can fly any airplane or spacecraft of terrestrial design. He can figure out the workings of any alien craft if he makes a successful Reason FEAT roll (his Reason is Incredible for this roll).
Background
etc etc you already know
CAPTAIN AMERICA
Real Name: Steve Rogers (Secret Identity)
Profession: Illustrator
Fighting: AMAZING (50)
Agility: INCREDIBLE (40)
Strength: EXCELLENT (20)
Endurance: REMARKABLE (30)
Reason: GOOD (10)
Intuition: INCREDIBLE (40)
Psyche: GOOD (10)
Health: 140
Karma: 60
Popularity: 100
Resources: EXCELLENT 20/500
Unique Weapon
SHIELD. Captain America carries a circular, red, white, and blue shield made of a special mixture of Adamantium and Vibranium. The shield is a Class 1000 material that cannot be damaged by any force except psionics. It absorbs up to 90 points of damage each round. While Cap uses the shield to protect himself, he cannot attack. Even when he uses his shield, Cap is subject to Slams and Stuns. Cap can throw his shield with Monstrous Agility and cause Remarkable damage (30 points) to whatever it hits.
Talents
Steve Rogers is a talented freelance illustrator.
Background
etc etc you already know
CAPTAIN MARVEL
Real Name: Monica Rambeau (Secret Identity)
Profession: Adventurer
Fighting: GOOD (10)
Agility: GOOD (10)
Strength: TYPICAL (6)
Endurance: REMARKABLE (30)
Reason: TYPICAL (6)
Intuition: GOOD (10)
Psyche: TYPICAL (6)
Health: 56
Karma: 22
Popularity: 20
Resources: EXCELLENT 20/500
Powers
ENERGY FORMS: Captain Marvel can convert her body into any form of electromagnetic energy, including radio waves, gamma rays, cosmic rays, and visible light. She can also move along electric circuitry. She moves with Unearthly speed (up to the speed of light) in these forms. In energy form, her Agility is Unearthly for dodging, but not for accuracy. She can only be harmed in her energy forms by other energy in the same form, and by energy-muting fields such as converters, force fields, and the Darkforce. In energy form, she can pass through any substance that energy can pass through.
ENERGY BOLTS: Captain Marvel can project energy bolts from her hands at anything she sees, causing Monstrous damage (75 points).
Talents
Monica was a member of the New Orleans Harbor Patrol. She is an experienced law enforcement officer and navigator. Her Agility shifts UP ONE when she uses firearms.
Background
etc etc you already know
Have fun!