Hello all. So sorry for not following up on this - seems things have been really busy the last few months!!!!
So I did finally get it clean. I put the smoker on an old table in the yard so it would be easier to clean. I took anything that could be removed out (shelves, shelf brackets, pans, shields, etc.). All of that went into dishwasher, after removing as much mold off as I could by hand. I then started scraping off the entire inside. This took about a half hour. I wanted to get as much off as I could, but let me tell you, I eventually hit a point where enough was enough! I then sprayed the whole inside with "Greased Lightning" (I'm sure any grease cutter would work). I let that sit for a half hour and enjoyed a couple high-quality, frosty Busch Lights. I then used a wet terry cloth rag and began wiping out the unit. I repeated with another round of the cleaner (and beers), and wiped it out again. At this point it looked so much better with only some staining left from the mold. I cleaned the seals and scraped / washed the glass. After all that, I took the hose out and sprayed the whole unit out to get rid of any little areas that the rag didn't reach. I kept the door open for a few days to let the unit dry completely. I fired it up to max temp and let her cook for about 4 hours. Not sure if it mattered, but I closed the vent for the first 2 hours, then opened it for the remaining time.
I've since smoked about 3 different things in it, and all came out great. Suffice it to say, I won't be lending this out anymore!!! Thanks for everyone's advice and support! HAPPY SMOKING!!!!!