Craigslist, used, Peavey or something else that is not light... And you can do something that will be way, way better than that Ampeg... Tried one of those and the best thing about it was the .... Tolex...
There is a used GK MB115 in the GS. For $325... That is a really good bet. I've played through them at open mic's when I was too lazy to drag my rig and listened to them from out front. Had one available to me for use on a small festival setting, side stage on a lareg flatbed that I mixed. I took the DI to the FOH and used that, the GK carried the stage. Six sets of mostly acoustic instruments plus a couple of fusion jazz bands with elec guitars, keys, saxes and drums... No complaints.
So, I've never owned one but based on my experiences with them, the GK 115 combo is a really nice amp in it's range.
That GK will rock the BA115 or the 200 out the back door...