So me and my other half have decided to go to Bali in August and the cheapest flights we've found so far flying with oneworld from LHR is with Qantas and Jetstar Asia booking on separate tickets. Pricing is £515 to SIN and £147 with Jetstar Asia to DPS. However, these flights are available to book on one PNR via Qantas at £905 rtn. Question is, will Qantas allow us to through check out bags at LHR all the way to DPS with the two separte PNR/ ticket? There's a forum in here regarding oneworld interline and states that Qantas will through check with QF and QF partners only even on separte PNR/ tickets (correct me if I am wrong though).

Thanks for the help guys!