Just bought my first mopar. Looking for help!

Hello everyone, chevy guy for the past 10 years of building cars with my dad and now my wife as well.... I'm 26 years old and have just bought my first 73 Swinger special...
Picked it up at a tow yard down the street for 300 and and a free tow.... I have been looking up as much information on this car as possible but would like to hear your feedback! And a possible direction on which to go with this car... wanted to do a prostreet build with it. But also dont want to ruin it if it is worth anything substantial. Car needs new carpet, and Seats but dash and all the glass are in very good shape.. car has all the lights, grille, and bumpers in great shape. Just a few minor dents around it. It says it came with a 318 but no engine or trans in car. However I learned as of last night that some mopar cars came from Canada? It has a made in Canada badge on the doors and a few other canada badges. Here is some pics and tell me whatchya think of it??? And if I should do a 440/pro street build or keep it stock??View attachment 1715468417 View attachment 1715468418

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That good Sir is a can opening of worms posing that question to this mob! Asking to go modified or keeping it stock is like asking what is best cam! You will get a very wide point of view, the one thing in common is the passion for building A bodies. Do it your way, have a blast. Regardless of your choice there is no end to the opinions on here! I vote stroked 440 with EFI! Or perhaps a gen 3 Hemi stuffed in there! Hah!