This sounds like a stuff problem, not a storage space problem.
We have a 1952 ranch with no walk in closets, for reference.
We moved into it from a 1900 farm house with 2 tiny closets total in the 4 bedroom house. THAT was an actual storage space problem! It was a big house (over 2000 sq ft) but felt like a tiny cluttered mess because there was no place to put stuff!
So back to your older ranch house.
Small hall closet: this should fit your linens and extra bathroom stuff just fine. If not, you have too many linens and too many extra bathroom things. Send to goodwill. You don't need more than one extra for each bed. 3 bedroom house, so 3 sets of sheets don't take much room. 4-8 towels don't either. If you have more than that, toss them. Even if you must have flannel sheets, still, this all fits fine in a small linen closet.
Put your pots in the kitchen. If they don't fit, unless you are a gourmet cook, get rid of them. 3-5 pots should be plenty. They will fit in one cupboard, not a whole linen closet. It sounds like you have too much kitchen stuff, spilling into the linen closet, so now the linen closet spills to other places. Or else use the 3rd bedroom closet as your linen closet.
Bedroom clothes closets: get rid of clothes. One regular non walk in closet should be fine for one person. You have 3 bedrooms. You and your spouse each take one closet. You have at least one extra bedroom closet for camping gear or extra winter jackets or whatever.
Bathroom with no drawers: Each of you get a small bin and set it on a cupboard shelf. Put your stuff in the bin. When you get ready for the day, pull your little bin out. Yes a drawer is nicer. But with only 2 people I don't see how you are running out of bathroom space. In fact you could install those aftermarket drawers in your cupboards. You would each have drawer then! If you have multiples of shampoos, cleaning products, etc, get rid of them (or use them up and stop buying new). You do not need a 7 drawer Rubbermaid thing. You don't need more than 1 or 2 brushes. If it doesn't fir in one cupboard shelf, get rid of it. Or do you have just a pedestal sink and no cupboards in the bathroom? If so get a large medicine cabinet/mirror. Everything goes in the medicine cabinet. If it doesn't fit, you have too much shit.
Walla! (that is a joke. I know how to spell Voila). All your problems are solved. You simply have too much shit.