95 318 magnum install

I dont have all your answers, but I do know a few of them.

Car oil pan assuming the 318 is from a truck.

You might want an early A bell housing - they are smaller, the dog houses on the early A's are smaller than the later A's. For instance when installing a 727 in a 66 and older A you need to remove or beat flat the pinch weld in the doghouse, I am not sure about manual bell housings, it depends on whether you are willing to do this to your car in order to use the later model stuff you have (if neccessary). If you do get the old bell housing keep in mind the overdrive bearing register wont fit in it - the over drive 4spds use a very large front bearing retainer. You might be able to machine that down to the correct size. You will also need a smaller flywheel to match the older bell housing.

Clutch/brake pedal assembly,

exhaust manifolds for a 273 or shortie headers from spitfire, if you go with the headers route you'll need to install manual steering to clear them.

exh system

22inch radiator minimum with adequate fan capacity (and hopefully a shroud).

Thottle linkage for v8 (assuming this is a slant car)

Possibly a dropped v8 centerlink on the steering - if yours is straight across from the idler to the pitman arm you need one, some later (65-66) slant cars had them.

driveshaft

Brake upgrade to dual master and discs on the front - for safe operation (assuming you have drum brakes)

larger rear axle, 8 1/4 minimum or 8 3/4 (preferred)

early a 3/4spd shifter floor hump sheetmetal and boot, carpeting.

You can get an AL intake that will take a single 4 bbl. If you want to use the fuel injection stuff you'll have alot more to do, beyond the scope of this format. Take a look at mopar action's website - they did a fuelie conversion on an early B body in the last 2-3 years -they should have all the details in back issues of their magazine on line.