How long did it (Dragon hot end) take to arrive?
The Dragon hot end was reasonable at six weeks from China.......

Delivery times from China (Aliexpress) have been variable. Most companies were offering 20-40 days or 30-50 days. After ordering, some parts arrived in three weeks but the last two parts have been on order for eighty days +. How much disruption the Covid added to the transport system is unknown. One company is ready to re-ship and the other is tracking and keeping me informed. I suppose it's the price of saving big bucks!