Ok, you are 80% there. Your light and fan with the hood will work fine.

Now ventilation for your tent. For $10 you can pick up a summer fan at your local thrift store, and place it in the tent. It would also be imperative for you to leave the tent open a bit so the poor buggers will get some fresh air. Then you will have to monitor the temp inside your tent with the light ON. I would try it without plants in there and just see what the temperature will build up to in there, with just the circulating fan inside the tent, and the vented light working its fan. If it goes higher than 80F or 85F, you will need to change that. This is the cheapest way. If you are getting temps in there in excess of 85, you will need another inline fan about the same as you have for your light. You will need to make a 6" hole near the top, put your fan in there and EXHAUST the warm air out of the tent.... to preferably out of the house. Near the bottom of your tent you will need to cut another hole 3x the size of the EXHAUST you cut at the top to bring fresh air in. This bottom hole is what's call a passive INTAKE and you do not need a fan for it. If you don't want to cut a hole that size, you can make it the same as the exhaust hole (6"), but that would require a second fan to bring the cooler and fresh air into the tent. In other words you are exchanging the air inside the tent constantly, one fan pushing air in, the other taking the spent hot air out.

Then you only have the smell problem, and you will prolly need to 'scrub' the air using a carbon scrubber and hook it up between inside the tent (as high up as possible, and then hook your exhaust fan up to that. Then any dirty hot air leaving the tent will be scrubbed before leaving your house.
Another cheaper possibility is buying a jar of deodorizer such as ona gel.

SN