Thanks mate. glad I could be of use.
1). It wont effect you paint work, just dont heat the sticker for to long or hold the hair dryer to close, just a gentle heat will do the trick. My 106 was 7 year old and they came off no bother.
2). Finger nails are best (if you have them) because I found useing sharp objects just causes hastle, especially if you catch the paintwork
3). White Spirit is fine, just wash off after with hot soapy water. Keep me informed.
Regards
P