Suggestions welcomed

I'm not sure if you looked at the build attachment I posted earlier in this thread? I'm just curious to get your thoughts on it and how it would work with the beefed up 904 and the Dana 60 with 3:23's? I have my LA block, but everything points to easier horsepower with the Magnum blocks. We've all got our own taste with these cars and for me it's a little of everything. I generally like a quiet mostly original look (sleeperish) without a lot of frills like hood scoops, stripes or spoilers. As for the rest of the car I want to utilize some of the improved after market technology to get the car to handle, perform and be more reliable while still maintaining the classic muscle car sound....
It went back and forth over this Magnum thing myself. Now yes if I was to start all over again I would probably start with a magnum block to go ahead and get the roller cam availability that then I'm not any kind of fan of those pedestal rockers like Chevys have and oiling through the push rods. I have no experience with any of that stuff except for of course my wife's Durango LOL I considered it as an option for my truck but really just find out you have to put all your La stuff on the outside of it anyhow. It's like basically you get to the inner long block. Honestly like you said you're going for the old school look and feel and keep things on a budget and not complicated I would just stay with the LA 360. A lot of people will say it's easy to get a used Magnum motor and go from there and I'm sure that's a cheap way to go but also I'm talking from complete scratch also. Really it's a coin toss. And preference but I don't think you're going to get any more cheaper reliable power out of a magnum unless you buy it that way and roll with something thats used.