Staggered Wheels on 1990 R129- issues?

[Benz Mondi]

My neighbor just gave me his old set of AMG Monoblocks from his CLK. They need to be refinished at about $125 per wheel. They are a staggered set. I've checked with the offset calculator at 1010tires.com and there are only differences of between 6-9 mm, which is about 1/4 inch or so. I don't expect any issues with rubbing.

Before I plunk down the money for the work, are there any ride/steering issues with this staggered set up relative to the stock 15-holers I have now?

Currently: 8JX16H ET34

Staggered set:
Front: 7.5JX17 ET37
Rear: 8.5JX17 ET34

Thanks,

AL