stripping to bare metal

At the restoration shop I work at we prefer to not have the customer start this on their own..... When stuff needs to be stripped we have it media blasted (we also get a better price rate then a walk in joe) then use an epoxy primer to seal it, not sure what you mean by it clogs? it's not a sanding primer but the PPG DP40-50-90 doesn't create clogging problems.

Anyway if your going to have someone else do it then I would wait and either do what they tell you or let them do it.

Commonly we will only have the engine bay, door jams, and rusty/damaged areas blasted.

At my shop we charge very reasonable rates that go up depending on how much we have to fix from the owner tiring to do it themselves.