Fix marketplace on existing website

I have an existing WordPress website for vacation property rental --- www.CaboCondoVacations.com and am currently operating a business with the site so we need to be careful with changes. We added a marketplace feature using WooCommerce to sell additional services to people who rent our vacation properties. The marketplace is functioning but has a few problems: #1) there is a WordPress plugin conflict with the motopress vacation rental plugin and the WooCommerce marketplace plugin which is causing some issues, and 2) I need to add damage deposit and taxes etc charges to the extra services in the marketplace and there is no easy way in my current marketplace to do this. Want both issues fixed -- will likely involve replacing WooCommerce.