I can share a bit of what i did before Cons having a terminal on beta.
1st of all u will need a minimum 2 accounts , 1 termis in t1 fit > 2mil overall? more or less , i make them myself so the loss technically is close to nothing and 1 sequer , don;t go higher not worth it.
2d thing u should do before deploying is to scan 2-3 islands in a fast bot , there are a few that can do 110+ kph and find that location that is easy accessible with a interzone cause most entry gates are camped . What u should look for a field to be good , 1st of all the island itself , some are full of probes , avoid them , the field should be ~4k away from any terminal and any connecting teleports , also would be a good thing to get it close to a "gamma teleport" for easy access.
Interzone there , or even use a standard if u want (assuming gate isn't camped) log the hauler out and start mining , once u get a decent amount of epri (~500k) log in grab loot and log out , at this point u payed for both bots . As soon as hauler is full , 1.6mil for a sequer , drop an emergency and get the hauler out to a safe terminal to unload loot . If the gate is camped (assuming u didn;t knew and went in with interzone ), u should evac with the termis aswell , cause it's 100% sure they will start detecting and roaming to find u , if not go back in with a standard and start all over again . There where times that i managed to snick ~10mil epri per 1 run like this , but u will get caught eventually.
Why use emergency , simply cause of detection range , standard can be picked from 10k , more or less , never checked , emergency acts the same way as a heavy bot , so should be ~3.4k with high skills and terminal bonus.
As u do this more often u will find new and better ways to do this and what u should be looking for . Be prepared always to die and don;t abuse 1 spot 2 many times
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Also if u got a 3d account , i would go for another termis rather then a detection bot . From my point of view , detection works when u own a terminal on the island otherwise it just draw more attention to yourself . The faster and the more u mine the better.
I probably missed a few things i wanted to say and there are a few that u might wanna learn them the hard way .
Take care and drive safe o/