Vegging Outdoors, Flowering Indoors - Pest Concern

I've been vegging outdoors & would like to move my girls inside for their flowering period due to security reasons.

My concern is bringing in pests like spider mites the could be hell to get rid of.. I have a fear of this indoors lol. Don't want an infestation!!

I was thinking of carefully inspecting them for 3-4 days & spraying them with neem oil + soaking the soil with it once or twice. Anyone know of anything that would be more guaranteed to kill everything when used as a soil drench/foilar spray?
I am not concerned about chemicals at this point, just want to make sure I kill any and all insects so no chance of bringing them indoors.

I then was going to bring them inside, put them in a bathroom then bug bomb them..

Thoughts/opinions on this and/or advice please?

Hi, I just vegged a bunch of clones outdoors , never experienced such rapid root growth crazy! They loved it out there. I then transferd a few to one of my grow rooms, went back few days later infested with mites!, I used a treatment called dr schimmel Dutch formula spider mite terminator I think it'S plant vitality in a diff bottle this shit really works one dose I done never seen another mite again. I suggest you give them a treatment before you bring it in your room then few days after it arrives to be 100% dr schm also kills eggs. That is what I will do from now on. Hope this helps

Bug bomb wont kill the spider mites...been there done that., but they do kill other shit. Bugs get immuned to using the same pesticide. Switching them up helps neem, azamax, any garden insect spray, etc.Try to get rid of the bugs before plants start to bud, after that spray the medium, pots and area they are dwelling in as a precautionary. Oh, spider mite eggs hatch every 3 days, js.

Are you in a tent? I would just get 2-3 hundred Lady Bugs and throw in with them. They will scrub you plants clean.