+1 for doing it yourself great way to learn about your car and simultaneously give yourself multiple lacerations. It's a question of removing the dump and oil cooler and any other things in the way e.g. dipstick or even thermostat housing if its a real squeeze.
USE THE TOYOTA OEM HOSE it comes with heat shielding and clips that are super easy to put on. You could use ordinary hose with heat shielding around it but its far easier to just do it with the proper tool. Sucks that its a 3 week wait, I had to wait that long for a gasket. Replace all the hoses you can really its a great idea with the age of these cars and all. I didn't do the HFHOE because it was hard enough getting the clamp undone for it. But if you got more than 5 hours to spare its a great investment.