Firstly Mrs H, I want to wish you all the best in deciding your path...
I was maid of honour at my sister's wedding whilst on my 2nd fresh cycle and I was fine. I kept it quiet cause I didn't want to distract from her but due to the bloating etc my family knew what was going on LOL. I had the EPU the day after the wedding and it was a nice distraction - actually that was our lucky EPU which resulted in our now 14 month old DS.
It is really hard to say how you will respond and OHSS is terrible if you get it (I never had it , but I have heard stories etc). There are a lot of appointments and remembering to take drugs at certain times. I do think however, you can do anything you put your mind to. With a supportive DH and FS I am sure you could manage. I understand the whole not wanting to wait anymore as well. I would say go for it!
All the best hun
Rach xx