Please note that if my math is correct, the FOV with the RKE's will still be smaller than your present 26 plossls,
In all cases tested, the 28.7mm RKE, even with some slight hard vignettte, measured a slightly wider field of view than a 26mm plossl.
The field stop in the RKE is 23.3mm. In three different brands of 26mm plossls, the field stop ranged from 21.7mm to 22.3mm. So even comparing to the widest 26mm plossls, the RKE is larger by about 5%. The RKE experienced less than 4% hard cutoff in two different standard binoviewers, and no cutoff in the Denk.
I should note, the 26mm TV plossls have the smallest field stops at 21.7mm. The effective AFOV ot the TV plossls is 48°.
However, I would agree with some other comments regarding the 28.7mm RKE. I found it about the most difficult and frustrating eyepiece I've ever used in a binoviewer, so gave up on trying to use it.
You might go back to considering to pair up your TV26. Mine are old, the smooth sided TV 26 pl. The view is aquired instantly and is held without struggle, and the contrast is better than the RKE or 30mm Ultimas or the 32mm TV plossls. TV 26mm pl is my most used low power pair of eyepieces.
edz
Oopps, just reread, you don't havve 26TVpl, you havve a 32TVpl. There has been very little if any change in design in the TVpl of the years, so you may be fine, except that if you have a smooth sided TV, stick with the smooth sideds.