Hi Julian,
you can get my response faster via email.You can email me here.
https://www.sultantheme.com/contact-us/
It is better upgrade first to 3.8.5 because it changes the link "mark forum as read" with a security token in navbar and forumhome.
Revision is based on the first design until you happy with it.
But I need to know exactly what you want. websites you likes and dislikes. colors etc. your information is very important.
If you are interested please contact me using the link above and we'll continue via emails.
~ Hanafi