oops, i forgot your question,
cycling would be faster and better with lr and or the shrimp method,
it is very hard and stressful on fish, but I can simpathize, it is very hard on us to keep empty tanks, but is the best thing for your system, also, damsels will often survive a cycle but are aggressive little tykes, and unless you are building a system with them i would not add them anyhow, one would do the job, but it will not stabilize as quick, and next you should not add more than one fish after that,(never double your bio load), you have to go slow
if you must use fish to cycle with (i don't reccommend it), check into mollies, although they are fw, they can be acclimated to sw, are real cheap and are much heartier and will not be a problem towards other fish, alot of lfs's around here sell fthem for those reasons
good luck HTH