Would this be a worthwhile unit to replace a Flybuddy loran with? I'm just thinking it's a plug in replacement with only the antenna needing changing, so there won't be a big installation bill. I already have an IFLY GPS that I use, so this would be a nice backup. Any thoughts on this? I would have to be able to get it for the right price, otherwise I don't think it would be money well spent. Oh, and I don't have an unlimited budget, so a 430W is not an option.