I am no expert by any means, but I'll tell you what i know and will stand corrected if i am wrong!
1, i am a big softy when it comes to bottle feeding lambs, and know that once i stop feeding them i don't get quiet as many cuddles lol but we have just started to wean some of ours, and they are now down to 1 bottle in the evening but they have creep and water in the day.
2, Our farmer friend who we are feeding the lambs for, came and wormed the lambs at about 4 weeks.
3, Docking this should be done within 7 days i think, i always do mine newborns 2 days after birth less stress for them.
4, Only injections they will need is worming if you are doing it like that and vaccination
5 Earing tagging- one tag if they are going to slaughter before a year old, and i think its 2 if you are keeping them over a year.
Hope i have given you the right info and my apologies to those that have been doing this a lot longer than i have if i have got any of it wrong.