- f24c block with L 19 rod bolts and Golden Eagle 88mm Headgasket -> 3300€
- assuming my head is still fine: headwork to match the 88mm bore, + resurfacing + valve job + OEM Honda valve seals 300€
- Steel retainers recommended at an additional 120€
- AEM series 2 ECU (or maybe ultratech if there will be a map) -> Ultratech is 780€ + 120€ for the plug and play harness. AEM series 2 is currently about 1460€ (very bad USD/Euro ratio)
- and maybe an anti g-force oil pan (not a bad idea) 110€ including welding
- assembly & blueprinting 400€
- AEM v2 intake ~ 350€
- PLM Header and Header Gasket ~ 500€
- wideband O2 Sensor (Bosch) 90€ for Ultratech. For AEM you also need a controller, add about 60€ more.
- pre-tune FREE with engine package
- remote fine tune, not 100% needed, if you want to go for it -> 300€

The 93mm crank engine is basically almost the same price, slightly more expensive due to more expensive aftermarket crank. (1.6 rod/stroke ratio, 2237-2263cc)
So:
1. your block with iron sleeves, 93mm stroker with L19 rod bolts, RS machines 87.5mm or 88mm pistons, ACL bearings 3295€

2. Head gasket-> stock for 87.5mm (80€) or Golden Eagle for 88mm (145€)

3. headwork to match the 88mm or 87.5mm bore, + resurfacing + valve job + OEM Honda valve seals 300€

4. Steel retainers recommended at an additional 120€

5. anti g-force oil pan (not a bad idea) 110€ including welding

6. assembly & blueprinting 400€

7. AEM v2 intake ~ 350€

8. PLM Header and Header Gasket ~ 500€

9. We will need remote tuning for this engine

F24C engine is about the same price (about 140€ less) (1.47 rod/stroke ratio, 2381-2409cc)

If we rebuild your engine in stock form : (if your sleeves are OK) (1.82 rod/stroke ration, 1997cc)
1. Used F20C crank 300€

2. New piston rings 300€ (optional new pins ->65€)

3. ACL race bearings 170€ (oem are much more expensive)

4. Blueprinting and assembly 400€

5. OEM head gasket 80€

6. Plus headwork (same as above)

86mm stroker engine: (1.76 rod/stroke ratio, 2069-2092cc)
1. Used K20a2 crank 300€

2. Iron sleeves, RS machines 87.5mm or 88mm pistons, K24 rods with L19 rod bolts, assembled and blueprinted 2000€

3. ACL race bearings 170€

4. OEM head gasket 80€ (87.5mm bore) or Golden Eagle for 88mm bore (145€)

5. Plus headwork (same as above)