've launched a Patreon for Ultan's Door! It's a way for me to share draft material and art for future issues of the zine as I build towards their publication. There's even a tier that gives you access to The Oneironaut, a quarterly Patreon exclusive physical mini zine! Check it out: https://www.patreon.com/ultansdoor
I may have something to contribute here both as the partner of a professional game designer who runs a Patreon and as someone who has run a 3 year campaign in the world of Zyan.
First of all, very wise to keep your last KS simple. I'd do that as much as possible - could you perhaps handle back issues by keeping them in print and fulfilled by someone else such as EF, and just providing a discount coupon as part of the KS?
I wouldn't necessarily look at it as either/or. Patreon patrons and physical customers are two different markets and you can cater to both. Patrons want to get material early, they don't care if it's janky or incomplete, and they like to have a peek behind the curtain. They're also a good source of feedback from people with a real investment in the work.
Honestly I think paying for editing and layout at that stage would be a waste, even counterproductive - if you've paid for a peek backstage, you want to see the rigging!
1/3