Repairing veneer and restoring vintage speakers?

A while back I picked up vintage Yamaha NS1000M speakers that sound awesome (beryllium mids and tweeters, 12" woofer), but they need some love cosmetically. The veneer has broken off in a number of places (see pic at bottom of one example). Would like to hear from anybody knowledgeable in this area. Does this seem like a sensible approach?

1. Glue down anywhere the veneer has lifted.
2. Fill missing veneer with strong and sandable two-part wood filler.
3. Lightly sand entire cabinet, making sure filled areas are sanded smooth/flush with original veneer.
4. A coat of spray grey primer, sand, repeat.
5. A coat of spray solid black satin paint, repeat.

Not sure whether to use sandpaper and block, or just buy an electric sander? The latter seems like less work. Open to suggestions. Thanks!

 

another option would be to use a razor blade and cleanly cut the bad veneer off, leaving a square. Then glue on a new square of veneer and color match with dye/stain.

 

A fair suggestion, but aside from veneer issue, the original paint is scratched up and in bad condition. Needs to be refinished overall.

 

I dug into this a while back, and re-veneering them shouldn't be too difficult with the heat-activated veneers available today.
However if you'd like to sand and paint them, research sanding methods because others have already done this and can tell you which grit to start with, which grits to use, and which grit to end with (I think it's 220?)

 

Is the original painted? or dyed wood with a clear finish? If painted, then you're first inclination is probably the best. If it's dyed/stained and you want to keep the "wood" look, then strip the finish, put a new stain/dye on to clean up the scratches and then a new finish.

 

It's painted black, so all repairs would be hidden.

I always assumed this was highly skilled work? Maybe it's easier these days, but probably too much for an amateur DIYer with limited tools.

 

I don't think it's necessarily highly skilled work if the lines are straight, but in the end it's what you're comfortable doing.
Here's a quick informative page to read regarding some basics:
https://www.joewoodworker.com/veneering/backed-veneer.htm

If you're uncomfortable with DIY then sand and paint (which is still DIY, but no router and less tools) but read and learn from others who've done it before.

 

Temporarily placed side by side, quite the upgrade in size compared to my other speakers (which are 40lb each).

 

@struggles would probably know the most about this. He gave me some advice on dealing with some peeling veneer on cabinets I got from him once. I don't think that same advice applies to this issue