Not really... I don't think mixing a TTL source and analog source is really an issue. You'd need to tell Quickshow what you have and it's either/or so, you'd have to select TTL by default and it would simply treat your red as TTL.
Now... the real issue(s) (there are two) are the varying powers and the quality of the components. 2 watts of blue, 1/2 watt of red and 100-200mW of green is way, way out of a normal balance for white. The other issue is the beam diameters or each of them. Ideally.... and I'm stressing ideally, you'd want the beam diameter of all three lasers to be almost exactly the same. Think of a target for shooting or archery. The bulls eye circle would be your green beam, the blue beam is going to be the size of the first ring and your red is going to be the size of the whole damn target. (Well.. seriously... say the third ring out from the bulls eye.) That's not as big an issue with beams as it is for graphics but, it will be noticeable - especially to you, even if not to your audience and, you will quickly wish you hadn't wasted the money and will want to get something better to replace them. $88.88 and $75.89 are loose change in this whole laser endeavor. Granted, as a new person starting out, you may want to just to get your feet wet with something but, yes, you will quickly decide you need to upgrade. Now... quality of components. I actually kinda like that 2 watt blue to be honest but, I'm not terribly excited about the red and the green. Even stepping up to this might be a little better bet: http://www.ebay.com/itm/Solid-Stated...item2c99037f85 Red... that's still a hard call as that's going to be the most expensive component.
I'd also be inclined to just put it out there in the Buy Sell thread that you're looking for some starter modules. I'm sure there a members with some used but perfectly suitable things.