Connecting bath drainage to soil pipe plumbing advice

Connecting bath drainage to soil pipe Hi all,

I need to connect my bath drainage to my new soil pipe. I have only one spare entry to boss into the pipe at the very bottom (see photo). As the inital entry out the wall will be on a gradient I was wondering if there was a combination of elbows I can utilise to get a 90 degree vertical drop down to the entry point? As I'm using 50mm pipe I'm not sure I can fashion something on an angle, similar to boiler condensate pipe the other side.

Or would it be easier to just employ a strap boss further up the soil pipe?

Cheers. P

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