The glock conversion would likely be easier then the 1911 conversion.
Handgun hero lets you compare size and dimensions
And it looks like the G24 (40SW Longslide) and the G40 (10MM Longslide) have very similar frames.
Not 100% identical but close
handgunhero.com/compare/glock-g24-vs-glock-g40-gen4-mos
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I would contact glock prior to purchasing to make sure they're compatible, but if they are there are aton of places to get a G40 upper,
Contact Information
If you have questions or to request information, please contact us via email at
GLOCKCustomerService@glock.us
U.S. Headquarters
GLOCK, Inc.
6000 Highlands Parkway SE
Smyrna, GA 30082
USA
Phone: 770-432-1202
FAX: 770-433-8719

Lone wolf doesn't seem to have any 40sw to 10mm conversion kits only 10mm to 40sw.
The glock store has a 45acp to 10mm
glockstore.com/Double-Diamond-.45ACP-to-10mm-Conversion-Barrels

Shaun, I don't know if you already have the pistols you mention. If not, I use 10mm handguns and my Glock 20 has 4 barrels. 10mm, 40S&W, .357Sig and 9x25 Dillon. 4 calibers through one handgun with just a barrel change is serious versatility. Much easier to get the 10mm as all these calibers are based off of the 10mm parent cartridge.

Check out Lone Wolf Distributers.