ssr seo spa using deno

description of the probleme
I will create ecommerce web site .
I create rest api usining deno, I will create frontend and I want my site to have this features :
- ssr for seo
- run as SPA on client side
- deploy as single project for more performance and maintenabilty without proxy behind nginx(in deno deploy  as first choice or in vps , no probleme for using 2 server for backend and frontend in dev mode)
- if I use ssr with deno, I loose spa
- if I use spa I loose SEO
- if I use node universal framwork (like angular nextjs ...) I will deploy 2 sites instead of one site and loose some performance(node app will request deno app before each ssr action)

solutions
I have some questions can be begin for some solution
Question 1 :
we have already a lot of module and framework for building ssr apps(alephjs ....) and SPA (backup ...)
my question is possible to mixing all those tools for building something like angular/nextjs but using deno instead of node ?
if yes this will be good for deno deploy popularity
Question 2 :
is possible to create deno/rust tool that convert expressjs universal app to deno http equivalent ?( we assume express app only fetch needed data and creeate html then send it to the client and no thing more )
Question 3 :
is there already good solution for my problem
and I  don't know ? ( it will be good news)