Laravel 5.5 return to view & immediately submit a form

I have a big form which is essentially split into two different sections, I need to to be one big form as a user might go back and edit the details of the first section of the form. I need to post the whole form to my controller save some of the data in my local database and capture & encrypt the rest of the input data to be posted to a remote URL (user taken off-site).

Currently, I'm saving the first part of the form -

//Create Billing Details
$this->validate($request, [
    'billing-name'        => 'required|max:65',
    'billing-address-1'   => 'required',
    'billing-town'        => 'required',
    'billing-county'      => 'required',
    'billing-postcode'    => 'required',
]);

$order = new Orders([
    'billing_name'          => $request->input('billing-name'),
    'billing_company'       => $request->input('company-name'),
    'billing_job_title'     => $request->input('job-title'),
    'billing_address_1'     => $request->input('billing-address-1'),
    'billing_address_2'     => $request->input('billing-address-2'),
    'billing_town'          => $request->input('billing-town'),
    'billing_county'        => $request->input('billing-county'),
    'billing_postcode'      => $request->input('billing-postcode'),
]);  

$order->save();

I need to set and encrypt, the rest of the data

SagePay::setAmount($price);
SagePay::setBillingFirstnames($request->input('billing-name'));
SagePay::setBillingCity($request->input('billing-town'));
SagePay::setBillingPostCode($request->input('billing-postcode'));
SagePay::setBillingAddress1($request->input('billing-address-1'));
$encrypted_code = SagePay::getCrypt();

This is the remote URL/form I need to post

<form method="POST" id="SagePayForm" action="https://test.sagepay.com/gateway/service/vspform-register.vsp">
    <input type="hidden" name="VPSProtocol" value= "3.00">
    <input type="hidden" name="TxType" value= "PAYMENT">
    <input type="hidden" name="Vendor" value= "123456789">
    <input type="hidden" name="Crypt" value= "">
    <input type="submit" value="Pay">
</form>

Is there a way I can store the first part of my data then possibly in the response I can return to a view that instantly submits the second form?

via Chebli Mohamed