From the description you give I would definately say your price is not too high.
You have mentioned all the things which the car will require, and their sum is less than what many of the SCs which are being sold require. I believe this mainly because from your description it has been maintained to the point that the main issues for a used vehicle seem to have been addressed during this ones life. Your mentioning all these items also instills confidence in me that you are being honest.. I'm sure there are others who agree with this.
Next, rather a bit of an extension of the first, the miles on your car appear to be long distance travel. Having now owned or known many vehicles with numerous long distance miles on them, I can definately say a car with 180,000 long distance miles which was maintained can easily beat a car with 50,000 city miles that had a spotty record. I currently own a car with about 180k that fits this description, and owned 1 with 50k that fit the other. I would exploit this. Do anything you can to support the claim maintainance this vehicle has had; like perhaps offering checkup documents from verifiable mechanics or reciepts of maintainance.
Another thing, the year, color, transmission, and other options of your vehicle make it among the highest demanded SCs! There are few with all these things combined, but many who want this. The '93 is the last of the old style with most bugs worked out, you have enough options to make this car at least comfortably equipped (some would call less than what you have loaded), and you have a transmission type that few people dislike.. a manual!
Lastly, one big thing that always makes a large difference is to be able to see the item! You mention having HQ pictures. Even people who might not be looking buy will view your thread, and if they see something remarkable especially for the price they will tell everyone they communicate with about these types of things. This means those pictures will increase the status of your car and increase potential buyers via word of mouth. They also add significantly more meaning to your description.. everyone likes to see pictures especially when buying! Now it could be there are potential obstacles to your posting pictures. These can likely be overcome by helpful forum members. Let us know, so we can do so!
I think your only real obstacle here might be your location. As others have said, I would have certainly gone to see your car were it in my area when I was in the market.. and I bought in a different price bracket. But there are many who will go way out of their area to consider these cars. Your offer to help deliver this vehicle will no doubt make a positive impact.
I think it will sell fairly quick. An SC with options and model year in high demand, good maintainance with at least some of the normal 'SC' issues having been addressed, and what seems like mainly mileage + cosmetic issues offset by a low price. Based on the 100s of SCs I saw for sale when I was in the market, yours is in the top 1/3 of the catagory as it is described/implied.