Budget road/gravel drivetrain with hydraulic brakes

I have a steel Bianchi frame that had disc mounts welded onto. Currently I use TRP hylex brakes with road levers and shimano 105 bar end shifters 11speed. The drivetrain is due for replacement, any recommendations for a budget road/gravel drivetrain with hydraulic brakes? I want to do a CX race this fall and don’t want my knee hitting the shifters

One option would be Gevenalle‘s Hylex conversion kit, which enables installing the shifters as part of the brake lever: https://www.gevenalle.com/product/trp-hylex-gear-upgrade/

I use Gevenalle‘s Hylex brake/shift levers on one bike, with a 12 speed Shimano XT drivetrain, and Gevenalle mechanical brake/shift levers on several other bikes, and I’m - obviously - a big fan. As I recall, the company designs particularly for cyclocrosss (although my use is road, gravel and bikepacking).

That seems like a decent option, looks like they suffer from stock issues. Maybe i can find some if I use an actual computer