I live in Bend, about 10 minutes from their warehouse. I got pretty close to pulling the trigger on an Overkill SO510 about two months ago. I also really liked the design and it's clearly a well built product, so I reached out to JP (their sales guy) and asked if I could swing by to take a look at one in person and ask some questions. They made time for me that day, as they were heading out on a trip the next morning, and I saw them working on a couple trailers that they were taking down to California for delivery. They let me pick their brains for about an hour, and I left fairly certain I was going to buy one.
I sent JP a few follow-up emails, and while it took him a few days to respond since they were traveling, he did get back to me and answer my questions as best as he could over the phone. I definitely got the sense that they're a small crew with a lot on their plate, though, so they don't always prioritize answering emails/phone calls. I think you'll have to be fairly patient with them, as they're swamped with work right now.
I will note that they're also currently re-designing significant parts of the SO510 -- the galley is switching out some of the Zarges boxes for actual cabinets, and they're building a pop-top into the roof so people can opt for a second enclosed bed space instead of an RTT -- and I've noticed they took down their website, with a placeholder that says a new one is "coming soon", so it's possible that they might not be taking orders right now until they can get mock-ups of the new design up for everyone to see. A couple of months ago, their lead time was something like March/April, so at this point, I'm guessing you probably wouldn't get one until the middle of next summer.
My read from spending an hour or so at their shop and trading emails/phone calls with JP is that they're probably more focused on building the trailers they've already sold than trying to sell more new ones, and that their strength is in design and functionality more than marketing and customer service. So if you really want one (and they do look awesome), I'd keep trying. If you really can't get ahold of anyone there, I could always send JP a text and ask what the best way for a new customer to reach them would be.
I will note that if you're expecting to spend roughly $40K after optioning out your Overkill, you may also want to look at a startup out of Southern California called
RKS Off-Road. I went back and forth between the Overkill SO510 and the RKS Purpose, and eventually pulled the trigger on the Purpose once they introduced their
Ambassador Program, which provided a large enough early-adopter discount to basically even out the pricing between the two. We're definitely taking a risk on a company that hasn't yet actually produced any trailers beyond a prototype, but Travis and Elisabeth have spent a ton of time showing that they're very invested in their customers -- we did two Zoom calls with them that went multiple hours, and have probably spent another few hours trading emails over the last few months -- and they re-designed part of the interior based on some feedback we gave them. In this low $40s price point, I think the Purpose is currently the best bang for your buck, though with all the caveats that go along with a startup that hasn't actually delivered a product yet.