This looks like it would be great. The Richmotech LC i had for the T3PA pro pedals is amazing. I do however have concerns about the build quality of the regular T3PA pedals and wouldn't invest in upgrading them. PRO Pedals, sure, but not these plastic pedals.
I think it would be better to save for the CSL Elite LC pedals and use the Drivehub.
I understand it can be a budget concern spending double the cost of this load cell mod to get the CSL Elite + Drivehub, but you end up with a far superior pedal set that's mostly medal and built like a tank. The T3PAs pedal arms are too flimsy and wobbly and feel like they could snap at any moment.
I've owned 2 T3PA sets, 2 T3PA pro sets, T3PA Pro with Ricmotech LC, and currently the CSL Elite LC pedals.