OC 3.0.3.8. Paypal payment without Opencart checkout?

Quick question.
Is it possible to add a product with a Paypal button from the PayPal Checkout Integration Extension, that bypasses the checkout process?
Basically, I want to use this product as a credit card payment gateway for street-trading. I normally only accept cash, but want to offer an option to those paying with cards.

So I sell them the products for £35 on the street, they go to the 'street-trading' product on my website, select £35 from the price, then click the Paypal button, which takes them through to Paypal, they confirm, job done. No need for OC checkout.

Is it possible at all?
TIA

Direct credit card payments are becoming less popular than before, since payment service providers are more-and-more hosting these payments on their ends once the store redirects the checkout form to their parties in order to complete the transaction. Otherwise, depending on the area your store might be located, you could also look for an extension payment on the Marketplace that may accept direct credit cards payment.