Child Safe Seats

I have two kids. Both are in Booster seats now. I need to have shoulder belts as well as lap.
What are the best options?

Would I be better off getting all in one seats and mounting them?

Any leads?

I really want the rear seat of the van to be the original fold out sleeper style, so if anyone knows what the best way is to install shoulder belts, I am all ears!

Thanks all!

-A

Put in a = "Roll Bar"!! & tie the harnesses to that!!

I used 4-point belts from Wesco so my kids could have decent seat belts. That link is to just one of many 4-points they have, they sell just about everything you could need on that website, go have a look.

Perfect. thank you.

i got a take off seat from a newer van and had is reupholstered. Here is the before pics....