Sorry for the huge delay...I dont come on here as often as I should. To answer your questions:
The bolt heat lot reads: -2SA RE4D
I just took appart my Garand to check and it does have the long channel with the dimple in the ferrule.
As for the 8 on the centre of the follower, I didnt see one on the top but there is one on the bottom of it...I take it this is what you meant?
Any reason for the specific questions? Just curious.
I have taken photos of all the above mentioned but am horrible at posting them on here. If you PM me your email I will send them to you.