What fittings to move toilet forward?

[JP_]

It is straightforward to move this toilet forward? I am putting 50mm insulation on the wall, (it was battened with cavity, so probably needs to come forward by about an inch once I am done).

Also, might replace the whole toilet - are there any that might be easier to work with. Hoping to do this myself ... thinking I can't be that hard, even if a bit messy!

Are these what I need? https://www.toolstation.com/flexible-pan-connector/p44832
Although not sure they can be turned 90 degrees

 

[JP_]

maybe this? https://www.screwfix.com/p/floplast-sp101-straight-connector-white-147mm/17227
10cm, so more than I need, but possibly I can make it work ...

 

[oldbutnotdead]

You don't need (or want) a Flexi. Give that straight one from Screwfix a go, if it doesn't seal you could try a spigot elbow & the straight adaptor