Leukybear is right. You need to make sure the fork fits. Right now it looks like the Rigida is only available with tapered steerers so you can cross that off your list.

I own a Funda Pro and it's a slick looking fork. At 384g it's heavier than an Easton EC90 SL/SLX or ENVE Road 2.0 so it really comes down to price. In my case I got mine on clearance for $170 which made it a no-brainer.

As for difference in rake, there simply aren't that many high-end carbon forks with <40mm rake. ENVE discontinued their track forks, leaving Leader's I806-TR V2 and Planet X's carbon track fork. Years ago I swapped out the stock 28mm rake fork on my '08 Felt TK2 for a 40mm Ouzo Pro and the handling wasn't ruined. What frame is this going on?