Certainly the first two months of any start up business can be challenging. Hopefully your business plan accommodates ramp-up, allowing you to simply stick to the plan as the business grows.

We do our best to be neutral with regard to IR cameras and manufacturers, opting instead to help our customers use what they have (or are considering) fully and to understand the limitations inherent to any camera. That does not mean we don't have opinions based on our research and experience using nearly every camera in the market. 

I have used both the cameras in a number of different situations. I expect anyone who used either would find features about both that they like and others they dislike—that is certainly true for me; my position is that we can get used to nearly anything. Clearly the IR-Fusion is a great feature that works very, very well on the Fluke TiR1 (and other models). The bottom line is both cameras can work for the buildings applications you are doing. I've attached two images that clearly show missing insulation in a house; please note that they were taken on two separate days with similar but not identical conditions.

If you look at the specs for the cameras you will notice differences, perhaps significant to your needs. The two that I think are relevant are the number of detector elements and the thermal sensitivity. The InfraCAM has an array size of 120x120 and a field of view of 25x25 while the Fluke has an array size of 160x120 and a field of view of 23x17. Further, some of the FLIR screen real estate is occupied permanently by their logo. :-( The end result is a bit more detail in the Fluke image. The FLIR has a thermal sensitivity (almost impossible to find in their spec sheets!) of 200mK at 25C while the Fluke has a thermal sensitivity of 70mK at 30C. While both can work well in buildings, the edge goes to Fluke as being significantly more sensitive. Again, none of these would cause me to not pick up and use either camera if available.

Let me know how we might assist you with learning to get the most out of your Infracam SD. It is a good camera that should give you very good results. At this stage of your new business, I don't imagine you'd be excited about either trading it in or buying a second camera. I'd be happy to review some of your images and give you my further comments in an effort to help you improve your results.