That's basically the setup I have and I really like it. I have the TS352 because it outputs 1000mW on some channels but to be fair it is a power hog. I have a TS353 on order I'm going to try out and see how it affects flight time.
If you check this stickythread in FPV forum
viewtopic.php?f=34&t=26413, you'll find what I think is the lowest price on the iOSD Mini (for the US anyway) as well as a link to the PnP cable you want just make sure you get the Boscam version not ImmersionRC/Fatshark.
I like my RX-LCD5802, in the stickythread there is a link to a cool 3d printer mount for the RC. The good thing about all this is, if you decide you want to add goggles later it's easy... the broadcast from your Phantom can be received by any compatible device so if you decide you want goggles later you can just add them, easy.
Antennas are super important for range, I highly recommend splurging on premium antennas like the ones from FPVLR they make a huge difference!
honestly flyaways are rare these days, most of the autoland features can be disabled in the Assistant software except for the super urgent final like you have NO battery left autoland... and in either case if you happen to experience an issue having live FPV may help you know exactly where the quad goes down. but really just don't push your battery to the limits and you should be fine.
I think the default battery warnings on the P2 are 30% and 25%, I dropped them to 25% and 20% and I've never had an issue with autoland or anything, but I also start heading home and making sure I'm not too high in the air (2m/s descent rate limit) when the battery starts to get low. you don't want to be at like 200m @ 1000m lateral with 30 or 25% left
