Anyone got ideas of this can be achieved easily. for a b200 engine

This the part you are looking for?
http://www.classicswede.co.uk/B19_B21_B ... 36492.aspx

and if you needed the tool to fit it with
http://www.classicswede.co.uk/9995025_B ... 27249.aspx

I suspect postage back and forth would make the tool expensive to borrow but you can improvise with fitting the oil seal

Do you really need the tool? I've never used it, just push it in with fingers and flat bar.

Its a pretty standard seal, should be available from a bearing vendor.