DIVI Website Issues - Need DIVI, CSS, Javascript.

I have the following issues that need to be resolved

1. I have a section in my COURSE page that I made from this https://www.elegantthemes.com/blog/divi-resources/how-to-recreate-ets-click-video-walkthrough-with-divi that I changed to have a wider slider on a desktop and now there are the following issues (1) it needs less space on the desktop. (2) It needs to look like the original elegant themes version on an ipad and phone. https://drive.google.com/file/d/1nauwukQjsIq1886le4-MNDv6WYULYKIi/view

2. I have 2 sliders in my ABOUT page that need correcting. (Note they are different sections for the desktop and the ipad/phone as I needed to change the photo order so I duplicated the row and adjusted visibility so different rows appear on the desktop than the ipad/mobile). I think the solution is to create 2 new images but I want the text to appear on the bottom like they do on the desktop version. https://drive.google.com/file/d/1Y1QC7stVQgGlLmN9Pp1V5t630i2h0nPf/view

3. I have a paypal/woocommerce issue as follows :-

I have 3 products on my site (I have woocommerce installed and I have a business paypal account) and I want to be able to allow my customer, once they have chosen the products to pay (IN PAYPAL) in a lump sum or in installments.

I am not in a position to pay the Woocommerce Installment plan atm and I cannot get a stripe account to go the stripe/partially. I thought of creating a variable product option but can't seem to use this to make a product both subscription priced or upfront priced.

The only reason I have woocommerce installed is so that I can offer upsells AND so that customers can use vouchers. I could create separate products but don't know how it will tell paypal to do instalments without buying the subscription plugin and the instalments may also be based on 2-3 products.
I need a solution for this.

Work needs to be completed by 5pm UK time today and needs to include any rework to make it look correct.
Price is fixed at £25