MagicalTux got "free" VIP status for hosting the forum for a long time, too. I think that him plus Hal are the only free donator statuses I gave out. You'd have to do something pretty extraordinary to convince me to give out another free one.

I don't see any point in donating 5 BTC now and then 5 BTC later. You won't get Donator status until you've donated a total of at least 10 BTC. It'd be better for you to earn interest on the 5 BTC somewhere until you're ready to pay 10 BTC. The forum isn't in need of money.