Do like as stated above and take the hoses to a hydraulic shop and have them put new hose in, and they will have the proper ferrule to clamp the hose and give you a factory appearance. On your ground strap issue, it's not a poor design it's a poor mechanic. Wlres under a bolt? Not by Mitsubishi. A ring terminal with the wire crimped into it, yes. Put a crimp terminal on it, then clean the area, fix your hoses, it will be good to go. If you are talking about on of the braided ground straps on the top of the engine has a broken end, you can replace it with some 10ga wire. In fact, on a 30+ year old vehicle it wouldn't hurt to add a couple. Cycle your electrical connections a few times to help them get good conductivity, and that can only help with possibly getting rid of weird intermittent electrical issues. It did on mine..