Charlepan

I have a lilac farm and I have successfully used an ancient method of extraction in cold fat, known as enfleurage. For 30 days I changed the fresh flowers in contact with the fat and produced a scented pomade of lilac. The next step is to make an absolute of lilac from the pomade. First I understand we are supposed to wash the fat in ethanol, strain and filter the fat from the ethanol and then by vacuum and low temperature, 'boil' off the ethanol to leave the absolute behind in the beaker. Temperatures higher than 90 degrees fahrenheit might destroy or alter the natural scent. My question is, what apparatus would be best for this? I am considering a rotary evaporator or vacuum distillation. Any thoughts?