The OP claims he needs a clutch, and the transmission pops out of second gear. Not hard to take that at face value.
Is it not possible to believe that the machine has two concurrent problems?
Perhaps it has been popping out of second for some time, and now needs a clutch so he wants to address both problems at once. I've seen exactly that scenario play out.
My point was that in order to get even a vague idea of the time required for the repairs far more info is required.
I'm not selling the job to either him or especially you. If I were, I'd have far more info than I do.
Don, I have to think that by the timing and tone of the PM you sent me that you were under the influence at the time.
If not, you need to re-think the situation.