It has secured a temporary unit at the aerodrome from where it will offer 1100 lots in a general sale on May 4.
It will then move into a permanent 900 sqm premises being built at the same location once development work is complete.
The fire broke out the day before a 600-lot auction was due to take place on March 9.
It destroyed the entire building as well as the goods of around 200 vendors.
Iain Smith told ATG that negotiations were still taking place with the insurers but he fully expected individuals to receive payment in due course.