2813 Mercedes Hands Stateside

You can try ofrei. they are in California http://www.ofrei.com/shop-bin/sc/productsearch.cgi

Search in Watch Parts and Accessories in Sales area, you may need to be patient...

Do you know hole sizes? I've got a line out to source in Texas but they don't have specific to DG2813 but may have ones with hole sizes that fit...

Interwebs info found posted on Homagefourum by Plastic: Can anyone confirm?

DG2813 hands are as follows:
Hour: 150 (1.50mm)
Minute: 100 (1.00mm)
Seconds: 17 (0.17mm)

ETA 2824 hand dimensions are as follows:
Hour: 150 (1.50mm)
Minute: 90 (0.90mm)
Seconds: 25 (0.25mm)

Might as well through this in as well:
Seiko's 7S26 movement's hand sizes are
Hour: 150 (1.50mm)
Minute: 90 (0.90mm)
Second: 22 (0.22mm)

You can drill out the ETA2824 minute hand, with a 1mm jeweler's drill bit and it'll work just fine. You can also "squeeze" the second hands stem slightly to reduce the diameter a bit, that part is a bit of a trail and error. I've done both and it works fine. Getting a 1mm drill bit and a pin-vice (for clamping the hands and lining up the holes before you drill) is a great investment, as it opens up a lot of different hands to be used with DG2813.

Source got back to me, they don't carry hands in those specific sizes other than Hour which they all seem to share.
Modding ETA is the shortest route...

ETA seconds hand is 25, isn't it?

second hand Ø mm: 0.25 is right.