A Few things…
Schwable make presta tubes with removable cores…
Secondly when the sealant dries inside the tube – how will you get it out ? You’ll add about 50 grams per wheel with sealant. When i dries you replace it so your wheels will get heavier and heavier.
Sealant life varies – JRA Wheelmilk i found poor – it dried solid within 3 weeks. Stans lasts longer though.