Alas, I think Bullseye! is too underrated for it ever to gain the sort of quality release it deserves. This is the best we're going to get so I'm happy enough to live with it.
As for the film itself.... yes, it's cheesy and the plot jumps about all over the place, but I think it has always been taken far too seriously by its critics. It's old fashioned good fun and has some hilarious moments within; the interplay between the two lead characters being of particular note. But, as a previous reviewer has stated, there is something more to it than just the comedy - it evokes the era particularly well and it features some particularly inspired use of location shoots.
In summary, it is never going to become a classic, but it's better than its reputation might suggest - you'll either love it or hate it.