I'm an architectural designer/structural engineer working for a colonial revival design/build company. I design and engineer houses for a broad spectrum of clients, but they generally break down into two groups. The first group designs a fairly generic house. Tasteful, high-end, but with generic details and floor plans that are intended to appeal to a broad range of buyers. These clients fully intend to live in the house for a few years and then sell the house (hopefully for a profit). Their goal is to hold onto the house short-term and enjoy the house sparingly with an eye toward the profit they hope to make. The second group aim for a very specific, personalized home designed around their lifestyle and preferences. These clients tend to be older, and have fine-tuned their tastes over decades. They have no intention of selling the home once they have it built, and they generally seem to be the more satisfied customers.
Long story, but the point is that there are similar groups in the gun crowd. Some are gun collectors/investors who enjoy fine firearms, but are attracted to the value of the firearms as well as their potential shooting ability. Some are shooters who look for firearms that are ideally suited to them, or modify existing ones to suit them. I don't think either side is more valid, and the line between the two groups is often a very blurry one.
I fall into the second group. I'd rather have one firearm that fits me, and is customized to suit my needs and abilities than a safe full of beautiful models that I will never shoot. If I were you, I'd cut the barrel down to a length that feels right to you. If you feel squeamish about doing it, sell the gun and buy one with a shorter barrel, or one you can cut down without regrets. I know there are a limited number of older models, but they are just material possessions. You can't take them with you, and you should own them, not them own you. When I die, I hope to leave my son with a few firearms that are worn, carry tons of memories, and remind him of me because I used them constantly. Those are the type of items I find valuable, not ones I can hope to sell for a few hundred more than I paid for them if I live long enough to sell them, but not long enough to have them confiscated.
I appreciate those of you who collect, but it's just not in my nature. Each to his own. If you don't want to cut down the pre-25, pm me. I'd be happy to do a trade for may a sale so you could get something you like. But be warned, I'd probably cut the thing down to 3-1/2" and shoot the livin' daylights out of the thing, carry it in my pocket, get it wet while hunting, and generally add some character to the thing.