Please help on loose 63 steering column

[72farmer]

I just bought a 63 straight shift on the column c10.It has a turn signal switch mounted with a hose clamp to the side of the column.The steering column shaft inside the column is very loose and steering wheel has a lot of play when you move it up and down.
I tore into it and was gonna try to get a new turn signal switch to put back like factory and also tighten up the shaft.Since I believe it may be more trouble and also one of the 3 tabs that holds turn signal switch housing is broke off.What holds this housing from turning?I may just leave the stand alone turn signal switch alone.
I would like to tighten up the shaft with a new bearing bushing or whatever goes in there.You can see the gap on the shaft in the last pic.Where could I find this part?Also look at the same pic and see one of the 3 tabs are broke off at (about the 9 oclock position) and missing.Is this the right bearing/bushing?