*Hugs* It is tough, I have shed many tears with my LO.
You're right that you can't do PU/PD if she's not crying. In fact, PU/PD is more of a last resort technique. First try to sooth her in the crib using sh/pat, gently rubbing her back/head or whatever you find works best. If she starts getting desperate, that's when you start PU/PD.
If she's not crying I would leave her. With you sh/patting her if she doesn't need the support you may actually be stimulating her too much for her to fall asleep. If she's fussing and stirring the whole nap I would just leave her to it the entire time.
If she takes 2 short naps definitely try to get a third one in there. Try to give her at least 2 hours A time before bed though as otherwise she may have difficulty falling asleep come bedtime. I think sometime between 4:00/4:30 for 30 minutes would be reasonable.
You could give wake to sleep a try and see if it works. It works for some, doesn't work for others and isn't a very consistent technique. Meaning, it usually works about 50% of the time.
I would also perhaps try keeping wind down to about 15 minutes and putting her in crib at 8:30. Since 30 minute naps usually mean OT she may just need a slightly shorter A time.