Hi Jamie, the second option is just way to expensive for the Rostock, the first is much better, but I don't see the hotend included. The Rostock only uses four stepper motors so you will only need four stepper drivers as well. The SS rods look a little short as to the one I am building right now, but will work with the length of belt they are offering with the kit, just depends on how tall you want to print an object or part.
You will need wire and connectors, Arduino board, ramps board, four stepper driver boards, heated bed, four stepper motors, three endstops, six linear bearings, seven 608 bearings, six SS rods, six yoke rods, belts GT2 type three GT2 pulleys, hobbed tube for the extruder, teflon tubing, Power supply, zip ties, LCD, SD card and reader, hardware and just a few other things. I really don't see any other drawbacks to the first kit, just know upfront there will be a cost to all of this but prices have come down. To give you an example, two years ago I bought a ramps board for just under $200.00 and I had to put it all together, I can now find it for $20.00 already to go, so these items are coming down in price. I just uploaded this video to show the progress I have made. https://www.youtube.com/watch?v=u1Qi93Lf46M#ws
The part you are talking about to print PCB to etch them is found on thingiverse and it's very easy to remove the hotend to install this printed part to hold a sharpie, I have printed these myself. On the heated bed all you do there is not turn it on, or you can install a switch to turn it off.
Jamie if you would like I can send you all the updated links to buy parts cheaply for your Rostock build, just PM me your email and I'll shoot them to you, Jeff.