Hi Mark, thank you so much for your comment, so glad you enjoy my work! Your asking the right man about gear:) I have used all sorts of sliders from almost every company out there. I think my favorite one for travel right now is the dynamic perception stage one (link below). If I have a shoot that I can bring my truck to I use the dynamic perception stage zero as you just cant beat how solid it is, and you can make it really long by buying slabs of 80/20 on amazon for it. Making your own slider would be a fun challenge, but might not be worth your time. A cheep way to go would be to buy the stage one kit form dynamic perception and then get the 80/20 rail for it on amazon.

As far as motion controllers for the rail, you need to save up for the Emotimo Spectrum. I have been working for them helping to develop their products for 5 years now. It simply can not be beat in terms of ease of use and how solid it is. Its all controlled with a ps4 Controller ! Check out this promo video I shot for them featuring the spectrum -

Hope that all helps and let me know if you have any more questions! Love to nerd out on gear.

https://www.dynamicperception.com/Stage-One-Ultra-Portable-Digital-Motion-System-p/bdl-1-nmx1.htm