I don’t know anything about field recording gear, but I own a small recording studio and know a lot about recording audio in a studio setting. If you want good quality be prepared to spend £1000’s, recording sound is not a cheap hobby.
Audacity is an OK piece of software, but if you really want to get a polished sound you’re going to need something a little better. All the big names are very expensive, I’d recommend Reaper as something that’s cheap but very high quality and made by a small company. Also their VST plug-ins are awesome and will definitely help in getting a good final result. You’ll also need a good understanding of acoustic theory to make the most of any mixing and editing software.
Also to that list I’d add some decent studio monitors (by that I mean speakers), so that you can hear what you’ve recorded properly. But that’s not enough, you really need to learn how to place the speakers and set up your room to prevent standing waves, unwanted reflections and things like bass frequencies building up.
I’d avoid the zoom mic - they tend to make really shoddy products - as any guitarist that’s used a zoom effects unit will know. It might be worth looking at a Shure SM57/SM58 as they’re a good workhorse mic. Also, do you know if those mics you’ve listed require phantom power? And do you have a pre-amp that can provide phantom power? I think it’d be worth having at least one dynamic and one condenser mic. AKG are a brand worth checking out too. Though in order to get the best out of your mics you really need to know a lot about mic placement, properly placed mics make a massive difference to the sound quality.
In fact, you’ve not listed any pre-amps. Do you have one? Because that’d be the item to spend the most amount of money on. Cheap pre-amps sound awful. Mics don’t work without pre-amps, I’d go with Focusrite if you’ve got the cash, or Art if you want a reasonable budget pre-amp (they even do a valve one that’s pretty decent). Then after the pre-amp you need some kind of analogue to digital converter. Cheap ones will pass, but the expensive ones really shine. Without this I’m not really sure how you plan to get recorded sound onto you computer. In my studio we use M-Audios Delta 10/10 and it is awesome, can’t recommend it enough and should work well in most setups. Without pre-amps and DACs I’m not really sure how anything you’ve posted will be of use to you.
And you’re probably going to need XLR cables.
Ultimately, it is possible to get reasonable quality records with cheap-ish gear if really know what you’re doing. But the best gear in the world can’t help you if you don’t know how to use it effectively.
I don’t know why you need to consider Blender in your audio solutions as Blender will not come into the pipeline until the sounds recorded, mixed and mastered, then you just drop the finished sound in with your animation or import it into the BGE.
I could go on, but I really need to sleep. The best advice I can give you is to really do your homework (I spent several months learning about gear and acoustics before making any purchases). That way you avoid spending money on useless gear and already know how the whole setup is going to link together before you’ve even got it. This link might help.