Getting Stripe to work with SPC or FEPS

I set up a Stripe account to use with wp-invoice, and it works with the standard invoicing system. However, it doesn’t work with Single Page Checkout or with Feps Credits.

In SPC, it says the checkout template can’t be found. In the file structure, the convention is wpi_paymentprocessor-checkout.tpl.php. However, there is no template like this for Stripe, only wpi_stripe-frontent.tpl.php.

Is there a way I can modify this to get SPC and FEPS working with Stripe?