several statements just to add info or even some corrections ( if they fit ).
Rallye cluster is standard on SEs... NOW, if somebody decided to change that to standard cluster per order at dealer that's another story. We have had a discussion about that quite ago somewhere, and so far so good, even has being mentioned, some ppl has known about one or two... but if Roll down SE quarter glasses are not common, the SEs without rallye cluster could be the rarest of all. Somebody told the phrase NOTHING WAS AN OPTION EVERYTHING WAS AN OPTION to Mopar.
SE is not Hardtop except those mentioned with the delete louver setup but STILL will be WP29 on VIN. Regulars SEs are B pillared while hardtops no. These SEs with hardtop setup is JUST a 73 deal
Coupes are the same than hardtops just glasses hold by a bracket on top of opening, so not a real coupe by what it means really a coupe being "pillared"
SEs with bulged hoods is a bit more about same discussion about the standard cluster on them. I just can talk about what manuals and dealerships catalogs say. I think these should be coded on tag and buildsheet to prove that.
The "Spring speciall Roof" actually is M07 code, which means Opera window without louvers BUT thats a 74 model option, not 73. And was not exclusive to Spring Special models, and was not even standard on Spring Special Models, just common. There is a 74 Rallye with 360 and M07 roof treatment around, and is coded still being a Rallye.
Same as the mid body side rallye stripes was an option on any model JUST on 74s, not 73s ( including SEs ) but standard just on rallyes and Spring Special ( Spring Special with the copper one as standard ). By 73 the rallye stripes were Black and red gradated. On 74 Copper gradated and gold gradated were a new adition to the options. I think never have seen a Gold one yet.
Not saying I have the full word on these, but what I have learnt and collected.