Firstly i was in opinion we talk about G88 not about Gew98 parts??. I answered here to the opinion that large ammount of G88/05 and G88/14 were delivered from CSR to Turkey :
"The Czechs sent whole rifles to Turkey , not sights . Some sights may have been done by the Germans on the war aid rifles , but some were also done by the Czechs later . The Czechs got many Gew-88 rifles from the old A-H empire , some of the ones they sold to SA . They also got a lot of ex German 05's and parts . I have several 88 bolts with the CZ stamp on them , but you can see the remains of the old German stamp under it ."
Secondly the contract signed about license of Mauser 98, production line mashines and large ammount of unfullended rifles in parts(nearly 40000) directly by Mauser Oberndorf are well known to every czechoslovak gun collector, published in all books Sada, Franek, Smid, Francev. I dont say i am expert, i studied information about ZB and their production in last 30 years.
Thirdly as mentioned in CSR was not interest to buy a obsolete G88 rifles, so they got some from inventar of AH empire, and they used it partly to guarding, for testing helm rifles and for bolt testing.
in 4. the new Gew88 bolts delivered to Turkey are described in archives, have all new arabic serialing, visible here on forum, should be proofed with halfmoon as turkish inspectors controled it in Brno, as here are clearly 69xxx serial number, minimum of 70000 were delivered, in archives are reported one contract over 50000 and other additional deliveries per 10000 was reported later prior 1930.
In 5. the Ecuador contract is well known beside of delivery of hundreds of lMG30 was sent 1935 about 15000 of barells G88, that is already in production reports. What for ammunition was delivered or not there is no differenced in the contract, most real it was normal 8x57JS, anyway the ammunition plant produced too the 8x57J version still to 1948.