It could be better without so many engines
At most 7.
But you'll have a hard time fitting them all since the new update eliminated engine clipping from the buildscreen, so my advice is threefold:
- Make it lighter, no overlapping fuel tanks, so instead of 7 engines, you can take off with 6 or even 5.
- Make more space to fit the engines.
- Add some heat shields. There's lots of inspiration on how to do this on this forum, and we don't mind questions.