I would use specially. As in meaning number 2 below.
special |ˈspɛʃ(ə)l|
adjective
1 better, greater, or otherwise different from what is usual: they always made a special effort at Christmas.
• exceptionally good or pleasant: she's a very special person.
• (of a subject) studied in particular depth.
2 belonging specifically to a particular person or place: we want to preserve our town's special character.
• designed or organized for a particular person, purpose, or occasion: we will return by special coaches.
• used to denote education for children with particular needs, especially those with learning difficulties.
I would use specially. As in meaning number 2 below.
special |ˈspɛʃ(ə)l|
adjective
1 better, greater, or otherwise different from what is usual: they always made a special effort at Christmas.
• exceptionally good or pleasant: she's a very special person.
• (of a subject) studied in particular depth.
2 belonging specifically to a particular person or place: we want to preserve our town's special character.
• designed or organized for a particular person, purpose, or occasion: we will return by special coaches.
• used to denote education for children with particular needs, especially those with learning difficulties.