The moment the AAA lands he will probably get scrammed by the Sansha since besides having the scrams at the gate sites are also preloaded, its a 50-50 chance at best so this will probably not work. also scramming frigs are not on grid at first but at a very close range waiting to warp in the moment the gate is activated.
There are ways to deal with it and a guide should be made. I ll try to write down a few things, that might work however best practice is to avoid that site for a while.