The following base costs 997 karma, leaving room for fleshing out:
Unnamed Hero (Fox Shapeshifter Magician)
B 4, A 5, R 5, S 4, C 5, I 5, L 4, W 5, E 4, Ess 6, M 6, Init 10, IP 1
Base 4 because it´s cheap and you won´t have augments.
Skills: Animal Handling 3, Animal Training 2, Assensing 2, Athletics Group 3, Binding 2, Influence Group 3, Outdoors Group 3, Perception 4, Sorcery Group 4, Stealth Group 4, Summoning 6, Unarmed Combat 2
Knowledge Skills: English N
Critter Powers: Allergy, Severe: Silver, Dual Natured, Enhanced Senses: Hearing, Enhanced Senses: Low-Light Vision, Enhanced Senses: Smell, Enhanced Senses: Taste, Regeneration (10dicepool), Sapience, Shift (Human), Vulnerability: Silver
Qualities: Magician, Perceptive (2), Simsense Vertigo
Spells: Detect Enemies, Heal, Levitate, Magic Fingers, Manaball, Manabolt, Mindnet, Shapechange
Summoner, Outdoors/stealth guy, spellcaster. Given that you essentially enjoy a 2500k¥ : 1 karma cash-for-karma rule, I´d not dare ask about initiation and more spells. But if you may, go for that. One setup would be eco-warrior magic group, arcana, 3+ degrees of initiation (masking, shielding, sensing).