Just in the process of upgrading one of my MTBs.
It cost originally 6,500,000 IDR (exchange rate is £1 = 19,000, but dividing by 20,000 works well enough)
New Deore M6000 brakes = 1,000,000rp
New Deore XT M786 r/d = 800,000rp
New Saint rear shifter = 500,000rp
New Deathgrip grips (from England) = £16
(FWIW the price difference to the next bike spec above is 3,000,000rp, which gets you the same coil fork with remote lockout (bad idea, fragile rubbish), 15mm thru axles, the M786 r/d, basically the same brakes that I am replacing, but with aluminium levers - so I'm quids in by upgrading)
I've been trying to source some new Schwalbe tyres (they are all made in Indonesia, but the range at retail here is very limited and mostly the lower end ones). I just placed an order online on some G-One's that looked like they were factory rejects for about half presumed retail (£15 ish), but it looks like they had already been sold, as they've refunded me.
I've been wanting a new fork for some time but may make do with a Suntour Epixon, which is around 2,100,000rp, rather than a Rockshox Reba or Recon (around £150-£250?) .
Have just ordered a JIS screwdriver from Japan and a new torque wrench. Need to find a work stand.
Some new Btwin MTB short-sleeved tops (£18 each, not bad at all).
Probably going to buy a new bike next week for my daughter (around another 6.5 million rp). Only problem now is that it's now very hard to find a triple (as there's essentially only one brand available here that's not either rubbish or imported and relatively expensive), and the marketing idiots who decided that a double chainset was a good idea for Indonesia (although perhaps they have an eye on overseas market). I may have to buy an old model.