I had a lot of the same worries when I went into the epilogues, primarily that it would somehow "ruin" my love of homestuck after I initially finished the comic. They ended up being one of my favorite pieces of fiction I have ever read but they aren't for everyone I suppose. Based on what you said I think the epilogues would suit you pretty well but I also think its worth going into them under the idea the impression that while they are definately more homestuck it also takes a very different tone and approach.

Now what I can say for certain is that the reactionary attitude epilogue haters have towards them often leads to them making them sound FAR FAR worse then they actually are. Even if you don't like the plot points in the epilogues it has some of the best prose in the series and really helps to evaluate characters in the original comic under a new light, emphasizing character details that were already there but often overlooked.