I have a 2012 Econoline E-250 van insured through progressive. It looks like it was used commercially by the previous owner but I'm not sure. I bought it from a dealer. It had a steel divider behind the passenger area and a ladder rack on the roof. I didn't have to do anything special to get it...
I have some extra MC4 connectors I can install for you. I'm not too far away, in Forest Grove. Unfortunately I'm going to be out of town (camping) today but will be back on Friday afternoon. I have the kit below that I bought from Amazon. It is really easy to use...
https://www.amazon.com/Highland-2006200-Black-Heavy-Carrier/dp/B0002MABL4/ref=sr_1_7?dchild=1&keywords=vehicle+gutter+mount&qid=1597267441&sr=8-7
You could modify these by installing steel plates to make them extend up higher.
<Edit>Oh, doesn't look like your gutters are exposed anymore due to...
This is a Chromebook with LTE (4G):
https://www.amazon.com/Samsung-12-2-Touch-Screen-Chromebook-Celeron/dp/B07N1TW94S/ref=sr_1_10?dchild=1&keywords=chromebook+lte&qid=1596815434&sr=8-10
There are laptops and tablets that have LTE radios in them that can connect directly to a cell tower. Some examples:
https://www.amazon.com/NEW-Microsoft-Surface-Go-Touch-Screen/dp/B086QM6KM6/ref=sr_1_6?dchild=1&keywords=surface+LTE&qid=1596810262&sr=8-6...
I have a Verizon MiFi hotspot in my van. You can connect to it directly with a laptop via a USB cable, and it can also be setup as a wifi hotspot. I've been using it for work 12 hours a day for a few years. I also have an external antenna for it on the roof of my van.
Try making a mask using a material with a different weave. Lots of things can be done through pantyhose for example, even breathing. If that is too restrictive, try some netting like they use for catching fish. Eventually you will find something that you can breath through. The mask doesn't need...
I have three 12 volt 100 amp hour AGM batteries in parallel, 700 watts of solar panels, and a 1200 watt inverter to run a 5000 BTU window AC in my van.
I suspect you will probably ruin your battery and probably alternator quickly with that setup.
One of the problems is that you are not monitoring how much energy you are removing from your battery and how much you are replacing when you charge it, so we don't really have enough information to be able to give you very good advice. You might have a bad battery, or you might just be...