I appreciate all advice, thank you to everyone who has responded. That is why we are all here. If I had the option of having a separate shop oven, I definitely would have gone that route. Shoot, I wish I just had a shop to do my work in! Unfortunately I don't so I did what I had to do. The parts came out good so I guess we shall see how well it holds up. Next time I think I will go with something like the duplicolor caliper spray or outdoor grill paint which doesn't require such an intense curing process.
I will give an update if it seems like it doesn't hold up so everyone will know whether it is worth it to go with VHT Flameproof for this application. Again, I did only do the first step of the curing process (30 min at 250 degrees) so I am doubtful at how well it will hold. If you don't hear back, then I guess you can assume it's doing its job.
Thanks to everyone for your advice