I put a cutting edge on my Luck Now blower a few years ago. For high use on pavement I would want high carbon steel to protect the blower housing. That said, I installed the cutting edge to provide scraping and to keep the blower from riding up on compacted snow. I have some over sized skid shoes that keep the edge about 1/4” off the pavement.
It appears the Land Pride “wear bar” is a flat piece of steel and not a typical angled cutting edge. If the housing is substantial, and your use light to moderate, you could probably skip the wear bar. JMHO...
I'm using it on a gravel road all the ones i see online use the wear bar. Mine came with inner skid shoes but there are also outer skid shoes. Not sure if both inner and outer shoes are needed the manuel does not really say.
All the videos you see on youtube use a wear bar and inner and outer shoes and no one here seems to have any advice on that matter.