What you have at 40k is fine IF you boost Anakin up to relic. His is the only ship you need above the minimum.
I also did the mission first pass of the GAS event on my very first try. I hadn't watched any how-to videos or anything. I just wanted t try it for myself. Ahsoka (not yet relic'd) was taken out with a single shot at the beginning of the battle and I started to panic, but the longer the battle went on, the more it was obvious that I could get it done.
And I did.
If I can do it with bad initial RNG on my first try in the first hour the event went live and with no strategy help, you'll do fine.
I won't say it's easy to do it the way i did it. I was biting my nails for a few moments there, but given the opportunity for multiple tries plus all the strategy help now, there's literally zero risk you'll actually fail.
