Bill Woods wrote: An attack on anything in the Solar System is too risky from a PR basis. There are at least a half-dozen other major SLN reserve fleet bases, presumably with associated shipyards. Start with them. The shipyards, not the obsolete ships (leave those alone until enough work has been done to make them ready-ish for deployment). Taking out the SLN's own shipyards will leave it somewhat dependent on SDF facilities, with consequent shift in relative power.
I'm not going to get into an argument about raiding the Sol System anymore (except I agree with John Roth above), but your post does bring out the point of what will happen if the GA is confronted by a reasonably well-run and powerful SDF...and one perhaps sailing in formation with a BF force.
Or even if the SDF is only defending it's own system, which happens to have a major BF base that's on the list for demolition. That could be a thorny problem for the GA.
And considering that many of the MAlignment worlds (well, at least one) have a substantial SDF....that could lead to some interesting complications, don't you think?