Roller wheel bearing conversion

[PbFlinger]

Hello all! I'm interested in converting to roller front wheel bearings on my '56 1/2 ton. I'm wondering why the conversion kits are so expensive. Are they special bearings, standard bearings modified in some way, or just regular 'ol wheel bearings repackaged for a huge profit? I'm concerned about available replacement bearings in the future. (What happens if I ever wound a bearing for some reason?) Can anybody tell me what bearing & seal numbers are used? Thanks!

Happy motoring, Flinger.