I would suggest that Eve add to the salvage options for ships one where the player could actually salvage and repair a ship. That is, they can recover the wreck and restore it to use.
To make do this I would limit things to those with excellent salvage skills. That is, level 4 or 5 skills in a number of areas (to be determined) along with needing a larger and well equipped industrial ship to perform the operation.
Once the wrecked ship is successfully recovered and in your cargo bay, you would have to take it somewhere for (expensive) repairs. I assume that an algorithm could be added to the game to determine this cost, but it wouldn’t be cheap and in some cases might not be economically viable.
But this would add yet another very useful, if requiring a serious investment in time, skills, and ship purchase thing players could do within the game. It would also make for interesting PvP and PvE play where a player or group of players are trying to harvest ships for resale from wrecks.
The other would be a player trying to recover a lost ship and repair it to what it was before the loss.
Insurance would be a great help here as it would cover some of the cost of these repairs and might make that option much more desirable to some players.
Right now, when you salvage (and I do nearly religiously) you get a selection of junk from the wreck. I know I would put the effort into being able to salvage some desirable ship were I could repair it rather than buy.
Just food for thought…