How to determine cost estimate siding?

[Laurie Falk]

Debating putting an offer on a live-in flip but the house needs new siding. It has hardiplank (I think?) that is rotten in numerous spots and the frames of the wooden windows are rotted as well. I think I'd want to do vinyl instead. It's not my dream home and the lot is kind of funky but the location is awesome and I think it has some potential and we could make it work for a year or two. I've done a couple live-in flips before but nothing that required this much updating-- they were both mostly cosmetic. How can I determine a general idea of repair/replacement without having someone come out? Is the repair cost book that BP has include stuff like this?

Thanks!