Looking for some advice on a 360 magnum swap

The LA roller cam engines are hard to find here. I found one but has been sitting on a guys trailer for 10 years outside and he wants 300 and I consider that a core at that point. The magnum is in a running truck with a rotten frame 126k miles for 250, hard to pass that deal up. I do have all the LA front stuff on my 318 that I could rob because I plan on keeping that engine as a backup because thaose are getting even harder to find here. The intake I have is the 8007 which says is for a 318 or 360 but this is all new to me just hate to not use a brand new $400 intake if I can avoid it.
I was talking LA camshaft, not the entire engine. Any '85-87 318 cam should be a sure ticket because they were carbureted. I've taken apart '89 and even though TBI, they still had the long snout. Or, you can just put a 30 dollar extension from Hughes and use the factory stuff. I bought two LA timing covers for 10 bucks each at a local swap meet. You have a choices and they are all good ones and pretty common ways to go and available. Serpentine, LA front, etc etc. All good choices, just up to the owner. As for intakes, I bought 3 speedmaster intakes (china air gaps) for the mag/la for 130 each when they had black friday sale. This past BF sale they were 180.