It doesn't actually need to take a lot of time and money from your family, if time isn't a factor. It really depends on why you want to fly.
Just from your first post, I don't think you've got the determination at the moment to go on to get the CPL. I don't mean this as an insult, but statements like "eventually" and "hopefully" make the subject appear to be something you'd like to do, but aren't too bothered if you don't achieve it.
So if you're just flying for leisure, then there is no hurry to get your licence, and your training can take a back-seat now and then when other commitments start to get overwhelming (This would be a good argument to convince the War Office that getting a PPL isn't such a terrible idea).
There's the other argument that if you're only flying for leisure, there's no great hurry for money; so you can keep hold of your other business, which will make it easier to continue to fund your flying post-PPL.
After getting your licence, you may decide that you do REALLY want to earn your living as a commercial pilot, and then statements like "hopefully" and "eventually" and "dream" will just disappear. When that happens is when you can start discussing plans with the War Office about selling up one or both of your businesses.
Once again, I'm not trying to insult you or detract you from your dream. But if your ambition is to be a professional pilot, then time and money become more pressing factors and convincing the War Office becomes a helluva lot more difficult.
On a lighter note, enjoy your first flight!
