I discovered that style of latch last night. Definitely an easier install than one that protrudes through the vinyl. I was envisioning one of the kids slamming it closed with the strap below the cover though. I'd have to figure out how to sew in a strap over this strap that would prevent that.
What weight gas shocks did you go with? The stock one is a single 20 lb. Definitely not enough but 2 of those might do the job. I don't want to put some that are too strong and make it hard to close.