I apologize in advance if this topic has been discussed at length recently
(I couldn't find it).

I'd like to put a "jump seat" behind the passenger seat in my 87 Westy.
These seats are like theater seats in that the seat folds up. Does anybody
have experience w/these?  How much should I expect to pay for a seat? Do
you know where I could get one?  How hard are they to install? How safe?
What should I pay to have it done?

Thanks,

david