I got a buddy in knoxville... every gun show that rolls around (4 per year) he buys an AK-47, 1000 rounds of ammo, sticks them in a 50 gallon drum, and buries it in his back yard. He's been doin' this for over a decade, though he admits he's missed some shows.
I'd say that's one way to do it.
You're low on funds? Save up. You don't need much. A good rifle, a good sidearm, and a good knife. That's what ya need. That will keep the bad man away, and probably provide a means to get the other stuff.
But if ya already have that stuff, or you're in the savin' mode... what to do in the mean time?
Plan. Think. Mentally prepare. Prepare your family. Make sure they understand what do to... If. If... If anything.
It doesn't do you any good to think about this stuff if your family isn't on board. Does DrWho think I'm a looney? No. It's like a hobby to her. She likes it. But it's not new to her. Its something that was done incrimentally. Its not like she came home from work one day to a paranoid husband.
Her husband became more and more paranoid over time... so it was easier to deal with... in fact... she decided to go ahead and get a little paranoid to.
You need "Bail Out" signals for your family. Things that can alert them, and trigger plans instantly, with no additional communication. Now.. that's tough... and it takes a lot of trust. It can save your lives though.
Read. Think. Prepare your family.
You can also find like minded friends... network with them... plan together. But not to much...