Chris, I can't comment on your specific application but for over 20 years we carried our two mountain bikes first on the front of a Safari Minivan, then on a GMC 1500 truck, and finally on a 2500HD diesel GMC truck.
Worked fine on all vehicles. On the GMC 2500HD it was a bit more of a pain as the front mounted hitch receiver was positioned right where the license plate should be soI had to make a bracket to mount the licence plate when the bike rack was on.
A well, because the receiver was so high, the bikes stuck way up above the hood line so I had to modify the bike rack to suit - I have welding stuff so easily sorted out.
I like to "just" be able to see the handle bars and seats over the hood line so I know all is well.
Honestly I preferred having them up front rather than on the back so I could keep an eye on them and if anyone ran over them, it would be me!.
Several people cautioned me about legality, as I suppose if an officer really wanted to be picky it could be said that you are obstructing the head lights in contradiction to traffic codes.
Never had an issue in 20 years though, and many many times had police cars driving along side me and in front on the interstates!
I would have to admit there was a very slight reduction in headlight effectiveness but it was a rare thing for us to be towing the RV at night, so not a problem - it really would not have been anyway.
Now we have a class B instead of truck and trailer, I did think about putting a front hitch on the MB for bikes, but apart from the cost of the hitch, it seemed quite a project to install it on the MB van - all the front grille assemble had to be removed then put back.
Instead, I bought a Wilco off road "Hitch swing" (swings sideways) for the rear hitch that allows us to access the back doors easily. Bikes and a cargo box are carried together back there and within load limits/ distances.
Only light but bulky things go in the box, and in fact, my wife has given up with the bike now, so we only take mine along!
Good luck - I'm sure it will work out fine for you.