Packard building is in Ontario according to AI

This may be overkill, but a standard pallet has a diagonal a little over 5’ and no problem with the weight. Used pallets are generally available pretty cheap

The difference between driving lights and fog lights is the beam shape not the color. There are clear fog lights and French high beams were yellow for many years

besides the gas tank location, sometimes the slip was on top of the glove box. Was that checked also?

I don't know about your specific car, but generally you can unfasten the "lid and scoop" from the levers under the dash and lift it out.

look at period ads, sales literature, and factory photos. This will show you what tires came new.

If authenticity in this matter is important to you, check what the factory paint schemes were for 23rd series. Only a few combinations of the production colors were offered (and I don't think the one you like is among them).

I'd say these are more appropriate at a general show than at a marque/CCCA/AACA meet.

odd to have "Mr" and "HP" in English but the engine specs in French

old shade tree mechanic trick my dad taught me for a sticky valve on a flathead was to take the head off, have someone crank the engine, and watch for the valve to open and stick. bop it with a mallet, repeat. if it starts to operate normally you're done. if not, the valve access panel on the side of the block comes off next and you can replace the valve