can anyone help me

Looking at buying a series 1 on a b plate. its done over 100k and getting it cheap due to needing a new petrol tank and door needed for the m.o.t. Im buying it mainly for a toy/bit of fun whilst my cosworth is tucked up over winter. First of is there anyone out there that still sells genuine series 1 parts and If i decided it would cost me to much to maintain its looks/performance, is it then worth much if i broke it down and sold the parts seperatly????. Any comments would be helpful