Beginning a similair challenge I undertook on FM 12 (and failed miserably) - starting at a team in the bottom tier of Spanish Football and taking them to the top. I've gone with C.F. Fuenlabrada of the of the Second Division B1 section (Third Tier). Here's a background of the club.
Founded: 1975
Nickname: Los Fuenlabrenos
Ticket Price: £9 (£96 season ticket)
Season ticket holders: 600
Estimated Value: £850,000
Media Prediction 12/13: 7th
Stadium: Estadio Fernando Torres (Capacity: 5,000)
2012/13
Spanish 2nd Division B1
Atletico Madrid 'B'
Aviles
CD Marino
Caudal
Coruxo
Fuenlabrada
Getafe 'B'
Guijelo
Leganes
Marino
Ourense
Oviedo
Real Madrid 'C'
Rayo Vallecano 'B'
RSD Alaca
Salamanca
Sanse
Sporting Gijon 'B'
Tenerife
Zamora
Founded: 1975
Nickname: Los Fuenlabrenos
Ticket Price: £9 (£96 season ticket)
Season ticket holders: 600
Estimated Value: £850,000
Media Prediction 12/13: 7th
Stadium: Estadio Fernando Torres (Capacity: 5,000)
2012/13
Spanish 2nd Division B1
Atletico Madrid 'B'
Aviles
CD Marino
Caudal
Coruxo
Fuenlabrada
Getafe 'B'
Guijelo
Leganes
Marino
Ourense
Oviedo
Real Madrid 'C'
Rayo Vallecano 'B'
RSD Alaca
Salamanca
Sanse
Sporting Gijon 'B'
Tenerife
Zamora