I've never used wine in my cooking so not going to advise re that except to say that it's probably wise to just have a go at a wine kit of whatever sort you'ld normally use for your cooking.
As for salt free diets: I hardly ever use salt in my own cooking but I undestand it can take soem weeks for folk who are used to it to have their taste-buds reset. You#re probably aware of Lo-salt which is a mix of sodium chloride (tablesalt) and potassium chloride. I've never tasted potassium chloride on it's own but you might have a go and see if it alone gives you saltiness (ebay) or helps in your transition.
I like easy to prepare food - rarely can be bothered with the long-winded stuff unless I'm out to impress. It's also worth pointing out that salt in the diet also comes in 'how much per protion'.
Recipe 1) Pork schnitzels & my potato salad.. 4 pork loins steaks (Lidl) hammered out, patted down with flour, turned ove rin beaten egg and covered in breadcrumb and fried. A pack of salad potatoes boiled (no salt) and allowed to cool and diced. To that bowl of spud you add a good 4 heaped teaspoons capers, a load of diced raw - onion, gherkin (Lidl again - one of the best gherkins about), raw radish, raw carrot, and almost anythign else that's handy such as thawed frozen sweetcorn or thawed diced mixed veg and then throw in a whole jar of mayonnaise and mix it all up. This lazy cook makes a batch like that and has 4 days of main meals straight from the fridge. A jar of mayonnaise (i just looked) has about 5gm of salt per jar so just over a gram a day or make your own mayonnaise.
Recipe 2) Which is my dinner just now. Boiled green lentils (make sure they're the large green one's not those naff yellow or orange things or the overpriced tiny black or green ones. Tesco usually have them) While they're boiling I put a few tablespoons of oil into a fry-pan, dice up some expensive imported bacon
"Spišská" which i concede has salt but I only use the equivelent of one rasher ordinary bacon per head - it;s there to flavour the oil and you could substitute a little of some other diced meat. Don't buy that brand of bacon - you'll like it too much and make my job of sourcing it harder, Fry it crunchy. It gets mixed into the cooked lentils along with a diced onion and several diced gherkins. it's a weeky favourite of mine.'
Recipe 3) My Mum's take on Zemlbaba when we were growing up poor and had it as a main meal rather than dessert. - Line a pudding basin with buttered bread (going stale is fine) Butter side to the bowl. Then layer in sliced apple, raisins and more buttered bread until you reach the top, finish off with a cover of buttered bread spinkled with sugar and bake.
Lastly some GP's are a bit crap about really looking into why folk have high BP. The obvious overweight cause is down to you but heart and kidney disease is on that list as well as others. Grape seed extract can reduce blood platelet stickiness as opposed to grapefruit which can increase platelet stickiness and should be avoided.
pgk