SpiceWeasel
Tre Kronor
I know quite a few people like you.....total time and multi sufficient for a regional, who don't bother investing in the CFI/CFII/MEI ratings.
I wouldn't recommend obtaining the ratings unless your company allows part time work in that field per their FOM.
Yeah, nope, not allowed. But wouldn't hurt to at least get the stuff when I finally have some off time. My other job paid a little more but it was a drag to be on call 24/7/365 to fix computers, in addition to 10+ hour normal M-F workdays. No desire at all to do anything but sit on my ass at home after dealing with that.