A friend is going to look over my carb for me. This one...

I see Brickwerks do a carb kit...
Brickwerks item here
I can see I need to workout which push rod length I have, but other than the kit, is there anything else I ought to get before he starts work?
With the current COVID precautions in place, I'd prefer to let him have everything at once instead of having to keep sending additional bits over.
Many thanks for the advice.
Chewie