You can order custom eyelet lengths from Tuflon.com..but BAF sells some Tuflon stuff, not sure on the wearable area, though.
And I agree with Quinn, definitely use glass for the piercing..that's what I always hear recommended for anything large gauge.
Current mods: 7/16" septum, 12g septum, 16g nostril
What once was/were: 0g labret, 0g flats, 5/8" lobes