Reddit mentions of kuman 7 Inch Capacitive Touch Screen TFT LCD Display HDMI Module 1024x600 for Raspberry Pi 3 2 Model B and RPi 1 B+ A BB Black PC Various Systems SC7B

This is the screen I got, plus a raspberry pi. https://www.amazon.com/gp/product/B01F3801A2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Once you learn how everything works, it's actually quite simple to set up; more so than a RAMPS with Marlin/Repetier-firmware.

In a nutshell, it has a default.cfg that defines pinouts (stuff specific to the board, don't futz with it), a bunch of premade profiles for sorts of kinematics/printers like a Kossel Mini, Rostock MAX V2, a generic CoreXY called maxcorexy, etc, etc.) which specifies general things.

Then you have your local.cfg, which you write using chunks of text from the wiki. Anything in local.cfg will override the profile.cfg text; so if you specify max homing directions, as you would for VORON, you simply specify this in your local.cfg.

The touchscreen can be replaced with any generic 800x480 touchscreen; just repeat the local.cfg changes for Toggle- the software that runs the touchscreen- to adjust scaling and screen rotation. From there, it's mostly all universal. I personally got this screen, which works well enough though I haven't designed a mount yet.

I've had a hell of a time, but that's mostly my own incompetence and bumbling my way through without many of the right connectors.

I can't help but think a Z-max endstop would be nice too, and would be easy enough to integrate.

You can run HDMI and a touch interface using a screen similar to this. https://www.amazon.com/gp/product/B01F3801A2/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

https://www.amazon.com/dp/B01F3801A2/ref=cm_sw_r_cp_apa_381bzbCN3FD0F
I believe this was the touchscreen that I used. The interface of mopidy is chosen by the user. There are a lot of extensions for it since its open source. So really you just find one you like and and can change it really easily. I really like it personally.

I used the one linked below, but I didnt hook up the touch options since no gui.. you can probably find a cheaper option but this worked great.

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https://www.amazon.com/gp/product/B01F3801A2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

A few more I found each says they work with the PI, but will they work with Crankshaft?

https://www.amazon.com/Longruner-Capacitive-Display-800x480-Raspberry/dp/B071X8H5FB/ref=sr_1_4?ie=UTF8&qid=1527688538&sr=8-4&keywords=7+Inch+Capacitive+Touch+Screen+Monitor

This one says Driver Free

https://www.amazon.com/GeeekPi-1024x600-Capacitive-Display-Raspberry/dp/B074Z6FCFW/ref=sr_1_6?ie=UTF8&qid=1527688538&sr=8-6&keywords=7+Inch+Capacitive+Touch+Screen+Monitor

and another

https://www.amazon.com/Capacitive-Display-800x480-Raspberry-Various/dp/B01F3801A2/ref=sr_1_2?ie=UTF8&qid=1527688538&sr=8-2&keywords=7+Inch+Capacitive+Touch+Screen+Monitor

Does anyone know if any of these would work?
I don't want to order something just to find out it's not compatible for some reason.

could you use one of those small screens people use for stat monitors?
lots of variety of options on amazon, as they are made for the raspberry pi.

Like : https://www.amazon.com/Elecrow-Raspberry-1920X1080p-Resolution-Speakers/dp/B076GZVCP2/ref=sr_1_18?ie=UTF8&qid=1549354272&sr=8-18&keywords=raspberry+pi+3+screen

Or

https://www.amazon.com/Kuman-Capacitive-Display-Raspberry-SC7B/dp/B01F3801A2/ref=sr_1_8?ie=UTF8&qid=1549354422&sr=8-8&keywords=raspberry+pi+7in+screen

I would recommend this one: https://www.amazon.com/Kuman-Capacitive-Display-Raspberry-SC7B/dp/B01F3801A2. Its just a rebrand of all the same panel all of the chinese suppliers use. It has onboard HDMI and can be mounted various ways inside your case.