Re:On the fly SSL registration and renewal inside Nginx with...
by andrewstuart2 on Wednesday July 20, 2016 @11:49AM
(#12129961)
Re: hitting the quota faster, they have a staging environment that they explicitly mention as a target for client development. Probably not a helpful tip to you now, but others may find it useful.
https://letsencrypt.org/docs/staging-environment/