If you're building a replacement bulb mount, include some fine sliding adjustments to get it all aligned. Don't put a higher-powered bulb in the enlarger unless you upgrade its cooling
If you do go down the replacement bulb route, this isn't necessary. The V1 uses a standard size dichroic projector bulb, albeit an unsual rating. Suggestion is use a same size but different rated bulb to use standard lighting transformer. The bulbs front face is the positioning mechanism. You might have to change the mount to suit a different rated bulb. The V1 has passive cooling. I doubt 80W to 100W will cause a problem.