Hi T.,
I don't know how much help I'll be, but last week I started the pre-registration process for VPK for my son, who will turn 5 in October, just like your little girl. So I thought I'd respond, even though I know you're specifically looking for people who have already gone through it, not necessarily people who are just starting the process. Anyway, unlike you, I am VERY glad my son has the extra year, because at our kids' age the boys generally seem to be a bit less mature than the girls, and sometimes (most of the time?!?) less able/willing to follow instructions. In fact, I'm sure that if he had a summer b'day I'd hold him back the extra year. I'll also say that I have been a music teacher for many years (I'm an older mom) and I have seen many kids who have fall/winter birthdays -- therefore are almost a year older than their peers -- and this is pretty much always a good situation for them academically AND socially.
Now, for some info that might be of help. I am new to Mamasource and this is my first time responding to anyone. But if I understand the concept of Mamasource correctly, we are connected only with other moms in our area. I am in Manatee County, FL, maybe you are too. If so, have you contacted the Early Learning Coalition in Bradenton? Their phone number is ###-###-####, and they are located at 1112 Manatee Avenue. Their website is www. manateeschoolreadiness.org. If you live elsewhere, I think that there are similar agencies pretty much everywhere. I also think that the system is structured in such a way that we're supposed to deal with these agencies instead of dealing with the local school board. I found the online registration process to be very easy. After completing the online registration I called their office and wound up talking to an amazing woman -- definitely the world's most caring and helpful government employee ever... I wish I'd gotten her name!! She told me that this year's VPK "Roundup" will be on Saturday, April 28, at Palmetto High. You can attend, just bring all the required forms. And get there early!
I won't bore you with any other particulars, since I'm not even sure if we live in the same county. If you are in my county and want more info, I'd be glad to help. I would like to close with this thought: your daughter is NOT stuck with no friends! I notice you said you have 3 girls ages 2,3 and 4. She has two best friends for life!! My son is, and always will be an only child, so he's "stuck" at home with Mom and Dad. I bet he'd love to have two siblings!!
Take care and hang in there.