I found the parallels between the Waterloo campaign and this episode from 1849 fascinating. I'm surprised they haven't been remarked on in any of the works I've read about it. I don't think Görgey mentions it in his own memoirs, so perhaps he wasn't consciously emulating Napoleon. I suppose if he'd remembered that Napoleon lost at Waterloo he might not have wanted to repeat that!
Perhaps Banlaky is right in suggesting that Görgey would have done better to attack along the south bank of the Danube rather than north of it, and thus taken a more direct route towards Vienna, which might have put more pressure on the Austrian Emperor to call it a draw; but that could have left the road open for united Austrian and Russian armies to drive south through Buda into the heart of Hungary. Yet another challenging decision in this neglected conflict.
I have drafted a scenario for fighting Pered using the BBB rules. I haven't playtested it yet but it looks to be a fun game with lots of possibilities. It is in the files of the BBB Yahoo group.
Update 16 July 2018: well tonight we did play it. I confirm it is a fun game with lots of possibilities! We had a really exciting game. The scenario seems to capture the Hungarians' desperate resilience as the odds threaten to become overwhelming. While it is primarily a frontal push channeled between two rivers, the threat of Hungarian interventions from flank and rear keeps the Austrians on their toes, and in tonight's game the flank threat became real and turned an Austrian win into a draw. Both sides have some interesting options about how and when to reinforce, and the two night intervals allow redeployment and change the shape of the battle. The early turns are really crucial; if the Hungarians enjoy good fortune early on (tonight we didn't), they can get a serious numerical advantage mid-game before the Russians arrive. Ours ended in a classic nail-biter, cries of glee and woe as the last few dice were cast, and we all went home high on adrenalin. This one will be played again and again, for sure!