That is a question I have been asking myself. I think that now it is doing much less mileage I will do the things that I have not been able to do because I have been using it everyday.
1. Respray the tank
2. Respray the swing arm
3. Have the brake calipers refurbished to look like new
4. Remove any scratches anywhere on the bike.
Apart from those things there is nothing really left to do has just about everything has been renewed on it. I foresee me using it a couple of times a month. Let the old girl have a rest. I will continue to buy any parts I come across as I now have a large parts collection and they will only become rarer.