1994 Isuzu Rodeo wont start after changing spark plug wires next after it ran just fine.

We checked injectors, spark and combustion. Wont even start with starting fluid. Prior to changing wires there was a mysterious coolant leak and it would get hot and I shut it off to figure out coolant leak. In june I replaced clutch and recently changed timing belt. It is acting alot like when I broke down with timing belt. It has been extremely cold since it has been sitting and at first the battery would die quickly. Also I have amp and car stereo hooked up and recently I had someone put fuses with the memory wire into the rest of radio wiring. The wiring is still ther but I have taken the plug out of the stereo. I put alot of money into so I really dont want to give it up.