Seeking Efficient Migration Advice: From BIG-IP i2800 (12.1.5.2) to BIG-IP r2600 (17.1.0.3)

Dears,

I need to migrate configurations from an end-of-support BIG-IP i2800 (12.1.5.2) to a newly purchased BIG-IP r2600 (17.1.0.3).

• Current Device: BIG-IP i2800 12.1.5.2
• New Device: BIG-IP r2600 17.1.0.3

Since BIG-IP Journey seems to support only up to v16, I'm considering the following migration steps:

1. Trial use BIG-IP VE 12.1.5.2, import UCS from i2800: load sys ucs [i2800 UCS File] no-license platform-migrate
2. With the VE version, verify the configurations while setting up the r2600.

This process seems cumbersome, and I’m wondering if there’s a more efficient alternative. Any advice or information would be greatly appreciated.