"Sometimes, just because you can doesn't mean you should."
This was a statement that PBusardo said recently about cloud chasers and extreme sport vaping. If you don't know who Phil is, he is the most recognized video reviewer of mods and vaping equipment online.
I don't know why the OP is insistant on a mechanical mod and an RBA for his very first e-cig device. But I agree with the sentiments of others posting previously, that this is NOT the setup to learn vaping on. There is way too much to learn at the beginning without adding additional danger into the mix. Too much can and will go wrong and set up an avalanche of errors that could be catastrophic.
ECF veterans, sometimes it's just wiser to put one's foot down and say, "No." Instead of complying with the eager yet foolhardy, why not focus on encouraging a simpler and safer setup for novices. Everyone needs a solid backup system anyway, which can be used later as needed once the OP has had time to learn with a less complex system.
For as simple and basic that a mechanical mod is in design, its pratical use is more complicated and complex than a regulated mod due to the fact that the user needs to be the "intelligence" to guard against unseen mechanical errors and human error. Mechanicals have absolutely no built-in protection and there is no room for error when using them. The user must become the built-in protection. I just don't see a novice vapor being able to learn & absorb everything there is to know right from the start no matter how thorough their research has been. The associated risks are just too high to run before you can crawl.
A regulated mod offers built-in protective circuitry which will shut the mod down before a catastophy can start. It is has the artificial intelligence that can see and react to a dangerous situation that even a well-seasoned vapor will not see. A regulated mod can do everything and more than a mechanical mod can do, with the exception of running sub-ohm coils on an RBA. I'm a very strong advocate that no novice should start out vaping with an RBA, let alone with sub-ohm coils.
My advice is to slow down and wade into the pool before diving head first and possibly breaking your neck. Get an affordable regulated mod like a Vamo and learn the basics of vaping. Start out with a simpler and more reliable juice delivery device such as a clearo or cartotank system to use initially, and have an RBA on the side to play with while you learn the ropes. That's my

.