Micro Tik Router configuration

I need expert person to configure MicroTik router for auto failover switching with custom desires. like 1st ISP on primary and 2nd ISP on secondary provider if 1st ISP down then it check and switch to bakup ISP in 200 Seconds and when 1st ISP comes back online then it switch back to 1st ISP with 200 Seconds down time.

Thanks