drying in trailer questions???

so dont really got anywhere to dry this year.. last year i drove them over to my brothers house but after seeing all the cops out lately im gonna have to pass haha.. alright so heres what i got.. i use this trailer for motocross but its getting alittle late for that. its a newer trailer, no animals live in it.. probally 8x4 in size. so anyway its been getting alittle colder at night here. just under 50 some nights.. ive had one plant in there for 2 days now. heres my setup.. theres 3 boxes.. one big rubbermaid tote with probally close to 60 half in. holes drilled in it for ventilation.. the other two are in smaller home depot boxes w/ holes in them to.. i made a another box that slides onto the side of the tote and hooked a small fan up in it.. probally not gonna bother with fans on the smaller boxes cuz the nugs in the tote are all the top nugs so theyll def take longer to dry out.. ok so now heres what the weather looks like for tonight.. from 9-11 suppose to be around 50-52 f and humidity will start at 69-71 because its gonna rain alittle tonight.. the trailer generally stays alittle warmer, i even think its alittle more humid some times which is good cuz its gonna get colder every night.. so you guys think i should be alright with this setup? i dont want my buds to turn out like crap cuz it was to cold out or something.. in a few weeks ill be cutting down more, think it will be alright if the temp is mid-high 30's at night? maby put a small heater or something in there?? one good thing i see with this idea is being able to slow dry them. they will def not get to crispy to fast. tell me what you guys think about this setup

thanks

also just went back to check on another two.. both of them just got there 2nd dose of the cha ching.. the one looks better but the one good seems likes all the buds shrunk.. i remember squeezing the nugs not to long ago and they felt solid.. now there reallllllllllly soft and seem to have shrunk or lost wheight? very weird. maby to much N?

anyone?? was gonna pick up a dehumidafier tonight but the only place that was open only had 1 and it was like 250$ i got a couple fans going right now until i can get one