The best way to deal with the dormancy issues are to provide some screening from full sunlight, allow the top of the substrate to dry to just barely damp, then water by placing the pot in a water tray for 5 mins or so, before removing it to drain. The deep roots will reach the moisture in the center of the pot, while the rosettes remain dry. Don't water from above, or allow them to be rained on. Reduce the humidity, and increase air circulation. If they are under lights, these should now be set to long day conditions. Expect your plants to look a little tattered and ratty over the summer months, and some losses are inevitable. As long as there is life in them there is also hope they will return next season when the temps. drop.
88F is not too hot for these Australian natives by any means. These should not be regarded as temperate species, and they would not appreciate a cold dark dormancy.
It is now gemmae season in Australia, so if you have friends there now would be the time to make polite inquiry as to the availability of gemmae.
Good luck with your efforts!