Can I reprint a Kor Ror 22 at any district office or just the original registration office?

You can get a copy at any of 928 District Offices (878 Districts in the Provinces + 50 Districts of Bangkok Metropolis) throughout the country of a คร.22 Registration of Family Status.

You can also get an English version of a คร.22 issued by the District Office (even Red-Stamped English version)

I got my original in Bangkok and have twice got a new copy here in Kanchanaburii {this year and last}

I think you have 7 days for immigration

Any Amphur....

Good question, I will be in this situation in the near future.