The ac/heater blower quit working on my 98 eldorado with 70k miles (just bought it last week and its in great shape). We put a hotwire directly to motor and it doesn’t work. Mechanic wants 200 labor and Cadillac quoted 379 for the motor. Are there other blowers that interchange and can I do this myself (intermediate ability)? Looks like valve cover has to come off for the blades to clear.