How do I build the new pipe system?

[adl6009]

The heat pump is on the way. I also ordered a new pentair multiport and a pentair rainbow chlorine feeder. Now all I have to do is put it all together. Any tips, tricks or, even more important, any "don't do this" stories would be appreciated. The only special consideration I have is I have limited space to install the heat pump. My filter is alongside my house and there is a chimney that is also in the way.

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Ch filter pipes

pump

That is kinda they way it is. The dotted line is the house, the ch is the chimney. Pipes is where the pipes are. I am going to have to have a 90 degree turn from the filter to the pump and another 90 degree turn from the pump to the feeder and return to pool pipe. I was thinking of using the flexable pipe to reduce the sharpness of the turns. Any thoughts on this?
Thank you.

_Please note- the position of the heat pump is directly opposite the filter. The BB moves the word pump to the margin when it displays the post.