Large vinyl model kit advice

Hi, last year I bought the 1/80 scale 1989 godzilla vinyl model kit by Kaiyodo. I have put together smaller model kits before and I am confident in my abilities for the large scale one, but I am wondering how this particular kit may differ from others due mainly to its size.  Does anyone have this kit or know a resource that mentions this large kit specifically?  Some of the things I am wondering about are: if seamwork will be necessary, stuffing material, if weight will become an issue. But any tips are welcomed.  Thank you.