Glad this thread was resurrected. I worked for a plastic distributor for a couple years, remember an acrylic vendor training session, ammonia based products (ex Windex) would cause hazing & eventually break down the material. Wasn’t aware of alcohol attacking acrylic, though it wasn’t discussed. I attempted a retort on an acrylic steamed pipe, cost me a new stem. I use soft scrub or an auto rubbing compound and pipe cleaner, then follow up with dish soap & clean water. Regular maint, I’ll just use soap & water.
Regarding the shank & bowl, I use the salt method. Sometimes I’ll find a spare vulcanite stem that fits & perform a Retort.