So I own an 100 year old house, with most of the trim "intact". All the trim on the first floor has been recently painted over the existing polyurethane, all the trim in the second and third floors has a coat of what I assume is polyurethane. I do not believe most of the paint has lead, though there are a few places with lead paint, nor do I think there is lead in the polyurethane/varnish on the second floor.
The trim itself is primarily baseboards with a nice ogee at the top, and casements, which are 3/4" boards with rounded corners. There are no beads or other adornments on the casements.
Currently I have a 8" jointer with a helical head, and a 12" dewalt lunch box jointer. I could easily see buying a drum sander, or a more powerful planer if that was going to save me some time, since I'm thinking about doing most of the house. Same with buying/building a IR paint stripper. I've used chemical strippers in the past, and they're too much work, take way to long.
I'd like to be able to preserve the original wood, maybe restain to a darker color, and apply a new coat of poly.
What is the most efficient way to strip the paint and poly off these boards with a minimum amount of damage/material removed?