Tele Vue NPR 1073 0.8x Focal Reducer need advice on fitting to imaging train image of problem

[iwols]

hi all when i purchased my ts optics some time ago it came with the following reducer

https://www.teleskop-express.de/shop/product_info.php/language/en/info/p10070_TeleVue-0-8x-Brennweitenreduzierung-fuer-Flatfield-Apos.html

im using the scope with the set up below,the 414ex , filter wheel and oag then straight into the scope ,its never been installed and just wondered if it was worth adding to the train and the difference it would make to imaging time (if i can find out how and where to fit it in the imaging train) 

well decided i was going to try and fit so can anyone tell me where it goes and what are the important measurements thanks photo added

Edited July 7, 2020 by iwols

[iwols]

the reducer states it needs 55/56mm back focus from the shoulder of the reducer  to ccd ,my 414ex has 13.5 to  ccd so that only leaves 42.5mm for the filter wheel and oag???? any ideas guys

[iwols]

[MarkAR]

It might be close enough to work.

The 6.5mm for the T2, can that be changed to a M48 adapter ? I'm guessing it's about M68 to T2 you have on there.