Seiko King Quartz 5856-8070 glass replacement

Hello, recently I broke the glass of my brothers precious King Quartz, witch was a present from me to him on his birthday a few years back.
Been looking online for replacement, couldn't find information about replacing it yourself and if it is possible at all.
Did find the replacement glass on ebay, thought I would give it a try.
Any tips on how to do it, or maybe would you discourage it at all as I'm not a watchmaker 😀

Thanks for the help!

It looks like the correct crystal is 295W19GN, so I assume it's a plain crystal without bezel attached or anything like that. So it would be pressure fitted under the bezel that is currently still on the watch. Remove bezel, place crystal, push bezel back in place. I suppose you could attempt to do that yourself, but I'd leave it to a professional if you don't have the proper equipment or experience.