Question for the Investors

[weedeater]

I am purchasing a house which I will be renting out as part of my future retirement plans but I will be borrowing the money for this purchase. I have a few differnt options to get this money including... Signature loan, Line of credit on my net worth, Line of credit against my house (second mortgage basically), 401K loan or open to ideas anyone can bring up. I don't have a problem getting this money but I am not sure which is the best rout especially unsure about borrowing against 401K on loan NOT a withdraw since this is a investment that will also pay itself off in the near future.... anyone done this and care to share how you did it?