Questions about African Bullfrog care

I'm trying to do my best but I am thinking of buying a young African Bullfrog I know of and I had a few questions:

Any soil recommendations that account for a pothos plant in the enclosure?

Should I put the pothos in its own soil or plant direct into the terrarium?

Best time of day to feed: specifically, can I feed the frog in the mornings before work or in the evenings after work or is it best to feed in the middle of the day?

My location for the frog will be in a room around 65 degrees F, would a UVB bulb or LED bulb work for that application or should I look into a heat lamp/pad?

I have heard that they need humidity around 55%-60% so should I buy a humidifier or is daily misting going to be good enough if the location for the frog is usually hovering around 40% humidity?

I know this is super easy to research supposedly but I get differing answers from different sources and not sure which is the most current but how quickly do they grow and how fast would I need to look into a larger tank than 120gal? The frog I had in mind is about golf ball sized right now. I was thinking the smaller enclosure for the first few years if it would work and then move into a larger habitat but if the frog is gonna get huge in a year, I'm getting the bigger tank.

Other than the live pothos, what other kinds of enrichment items are appropriate for a frog? I see mostly leaf litter, moss, and that's it. I understand they don't need the verticality but would a chunky piece of driftwood (sanitized, from the pet store) go unappreciated by the frog?

My plan is to have a 120 gal habitat with some kind of soil in the bottom that can support a pothos plant with a thermometer/hygrometer on the inside of the tank wall and then have a mossy patch, a feeding dish patch, and a large piece of wood in the middle with some leaf litter around the base for the frog to use to burrow. Does that sound way off base or am I on the right path? Any general beginner frog care tips as well? Thanks

TL:DR: what soil should i use, when to feed, can I put cool stuff in the habitat, and how quick do they grow?