Hello,
1. I have checked the Countdown timer on your variable product and seems that everything works well.
https://gyazo.com/52bc83d9718dfa17fb8d1885744c154b
Please, describe what you don’t like with the timer in the variation product.
2. The thing is the product price is related to the WooCommerce functionality and all you can do is remove the duplicate price through the “Remove duplicate price for variable product” option that is in Theme Settings -> Single product -> Show / Hide elements.
https://gyazo.com/bbbd695f0380cf4ce255bfc5e1fd8763
Keep me informed of any issues.
Kind Regards