False allegations and accusations levelled against the Ulama of Deoband

Q: Barelwis say that deobandi ulama are kafir due to the statements mentioned below in their books. Please explain. I am very worried because I follow the Deobandi ulama.

1- Rasheed ahmed gangohi rehmatullah alleh neh apni kitab fataawa rashidia Mein likha hai.. "Allah tallah jhoot bol sakta hai" (nauz billah) fatawa Rashidiya part 1 pg 20

2- Ashraf ali thanvi rehmatullah neh apni kitab hafizul eiman mein likhahai Keh nabi sallah hoo alleh wasalam ka ilm aisa hai jaisey bachoon pagloo aur Janwaroo ko bhi hota hai (hifzul eiman page 8 ) nauz billah

3- Qasim nanthovi rehmatullah alleh neh apni kitab tehzeer ulnaas mein likha Hai agar koi nabi aajaey tau khatum nabuwat par koi faraq nahin parey ga.. Tehzeer naas pg 24 nauzbillah

4- Khalil ahmed ambbithwi neh apni kitab barheen qatiya mein likhta hai nabi Kareeh sallah hoo alleh wasallam sah zada ilm shitan ko hai ... Bahreen Qaatiya pg nbr 51-52 nauz billah

Paying fidyah for the missed Salaahs and Fasts of the deceased

Q: We Sunni-hanafi, wish to pay as fidya for Qadha namaaz and roza for my mother and father, but I do not know how much they had qaza. I always found them Pious and humble, praying and careful about Namaaz and Rowza, except during last days of illness. What is the Islamic ruling for this? How can I calculate days and amount how to spend? Bearing expenses of a student heading towards hafiz e quran or Alim e deen, or donation for construction of Mosque considered as Sadaqa-e-jaria for my parents? What are other ways for this intention. Request for prayers for my parents to get best place in Jannat and Magfirat.