If i were you, I would do a 3M tech deal. They will send you the 3M, you then send 50 tech in 10 days then another 50 after that clears in 10 days.
You wont be expected to shell out for the tech first, it is always up to the buyer to pay. You could even do a middle-man deal and you'd still be able to afford to buy the first 50 as soon as you've got the 3m from the middle man.
You'll be better off and that is how to build a nation up quicker.
After I bought a foreign ministry for 5 aid slots I did 5 3M tech deals all at the same time with no funds for a total of £15,000,000, Dont know exactly how much I made but it was probably over £8,000,000, rinse repeat, grow.