but go to a real hose shop and get something rated for gas/oil use. You will thank yourself later on.
I can vouch for that. ONLY use the hi-temp coolant hose if it says fuel/oil on it. Some places may use oil-rated lines for their better hi-temp coolant hose, but many DO NOT. I used cheap shit on my recirculated PS lines, and the cheap hose ballooned out and leaked through it's WALLS after 2 months. Made a mess, and even worse to remove it. It felt like trying to pull the tampon out of hotrex's mom, all slimey and shit.
My suggestion is to do the hose/spring thing, but to also re-weld a barbed steel nipple on the pan at a 45*, as well as weld a barbed nipple onto the oil drain. A chunk of 1/4" thick steel sanded flat with 3 holes is a perfect start...