I’ve found a pretty easy solution.
It may not be perfect as I’ve spotted a few elements margin errors (only latest portfolio fullwidth for now).
1. Go to Bootstrap Customization tool http://getbootstrap.com/customize/
2. Don’t change any settings and go to the “Layout and grid system” section
3. Enter the desired gutter size in “@grid-gutter-width”. In my case 60px.
4. (optional): change the max grid size in “@container-lg”. In my case ((1000px + @grid-gutter-width))
5. Scroll down to the bottom and click on “compile & download”
6. Find “bootstrap.min.css” in the downloaded archive
7. Go to dante/css/ on your server
8. BACKUP your bootstrap.min.css original file
9. Replace it with the new bootstrap.min.css file downloaded from bootstrap.
After this alsmost all the elements are ok. You just need a few adaptations in the main style.css
10. Use a child theme and add the following rules in it :
.header-3 #main-navigation, .header-4 #main-navigation, .header-5 #main-navigation, .header-6 #main-navigation, .header-7 #main-navigation {
margin-right: 30px;
}
.header-6 .search-nav, .header-7 .search-nav {
right: 30px;
}
.header-6 #logo, .header-7 #logo {
left: 30px;
}
#breadcrumbs {
margin-right: 30px;
}
.page-heading .heading-text {
margin-left: 30px;
}
@media only screen and (max-width: 991px){
.header-6 #logo, .header-7 #logo {
padding: 0 30px!important;
}
}
@media only screen and (max-width: 767px){
.page-heading .heading-text {
margin-left: 10px!important;
}
}