I can only imagin how difficult this is for you Nikki but my gut reaction is for you to go for it....who knows when another bed will open and I think you need to say yes now. March is looming and that will be difficult enough with the anniversary of your dads' death.
Having him close enough to visit often makes a tremendous difference.
Even if he doesn't know you...you know him and can see how well he's being cared for. What does his son and sister think?
Watch the mail for a pkg...it will arrive when you'll need it most I think.